Langtang Lirung | 1989 SE Ridge

A Japan expedition to Langtang Lirung in 1989 via SE Ridge, led by Yasuo Katsuyama. Summit reached on 18th March 1989. 13 members recorded.

Expedition Details

Field	Value
ID	804
Imported	2026-03-06 18:04:49.359634
Expedition ID	LANG89101
Peak ID	LANG
Year	1989
Season	1
Host Country	1
Route 1	SE Ridge
Route 2	-
Route 3	-
Route 4	-
Nationality	Japan
Leaders	Yasuo Katsuyama
Sponsor	Hosei University Langtang Lirung Expedition 1989
Success 1	False
Success 2	False
Success 3	False
Success 4	False
Ascent 1	-
Ascent 2	-
Ascent 3	-
Ascent 4	-
Claimed	False
Disputed	False
Countries	-
Approach	-
Basecamp Date	1989-03-01
Summit Date	1989-03-18
Summit Time	-
Summit Days	17
Total Days	20
Termination Date	1989-03-21
Termination Reason	6
Termination Notes	Abandoned at 6030m due to fatal avalanche
High Point (m)	6030
Traverse	False
Ski	False
Paraglide	False
Camps	1
Fixed Rope (m)	0
Total Members	13
Summit Members	0
Member Deaths	3
Total Hired	4
Summit Hired	0
Hired Deaths	0
No Hired	False
O2 Used	False
O2 None	True
O2 Climb	False
O2 Descent	False
O2 Sleep	False
O2 Medical	False
O2 Taken	False
O2 Unknown	False
Other Summits	-
Campsites	BC(01/03,4700m),C1(07/03,5600m),xxx(21/03,6030m)
Route Notes	BC at Lirung Glacier (500m above normal site) C1 on SE Ridge. High point at C2 site where snow field began on SE Ridge. C2 site reached only on 18th March because one week heavy snowfall. Fixed rope to this site, then down to BC for rest. 4 members and 2 Sherpas to C1 on 18th March, so in BC 8 Japanese now. Each day in fact some members carrying loads to C1. On 21st March 8 Japanese and 2 Sherpas carrying to C1 with 4 to stay in C1; these 4 were Nishimara, Kuwashina, Matsumoto and sirdar. At about 4900m (1 hr walk from BC) avalanche at 10:43 am hit 4 members: Futami, Hisamoto and Kuwashina swept away; Matsumoto hit but not injured; Nishimura also in group but not hit. Avalanche started by small ice which hit snow slabs and slab came down; avalanche carried 400m down and over 20m ice cliff; 10 men in line on 21st; 1st 2 not touched and last 4 not touched (Nishimura last man). 10:43 avalanche struck Matsumoto, Futami, Kuwashina and Hisamoto; if 1 min later Nishimura dead. At 11:00 Nishimura found Futami's body (left arm stuck out of snow); sirdar found Kuwashina's body. At 4:30 pm Nishimura and 2 Sherpas left BC and arrived KTM 22 March 11:30 pm; others still in BC to search for Hisamoto whose rucksack and goggles found, until 15th April if necessary. Helicopter 28th or 29th March to bring bodies to KTM; families of dead arrived KTM 27th March.
Accidents	Fatal avalanche killed 3 Japanese climbers
Achievement	-
Agency	Trans Himalayan Trekking (THT)
Commercial Route	-
Standard Route	-
Primary Route	False
Primary Member	False
Primary Reference	-
Primary ID	-
Checksum	2450268
Year	1989
Summit Success	False
O2 Summary	None
Route (lowercase)	se ridge

Members

Field	Value
ID	16016
Imported	2026-03-06 18:06:05.675609
Expedition ID	LANG89101
Member ID	02
Peak ID	LANG
Year	1989
Season	1
First Name	Noriyuki
Last Name	Futami
Sex	M
Age	0
Birth Date	-
Year of Birth	1960
Calculated Age	29
Citizenship	Japan
Status	Climber
Residence	Yokohama, Japan
Occupation	Economics student
Leader	False
Deputy	False
Basecamp Only	False
Not to BC	False
Support	False
Disabled	False
Hired	False
Sherpa	False
Tibetan	False
Summit Success	False
Claimed	False
Disputed	False
Solo	False
Traverse	False
Ski	False
Paraglide	False
Speed	-
High Point (m)	False
Personal High Point (m)	0
Summit Date 1	-
Summit Date 2	-
Summit Date 3	-
Summit Time 1	-
Summit Time 2	-
Summit Time 3	-
Route 1	0
Route 2	0
Route 3	0
Ascent 1	0
Ascent 2	0
Ascent 3	0
O2 Used	False
O2 None	True
O2 Climb	False
O2 Descent	False
O2 Sleep	False
O2 Medical	False
O2 Notes	-
Death	True
Death Date	1989-03-21
Death Time	1043
Death Type	7
Death Height (m)	4900
Death Class	3
AMS	False
Weather	False
Injury	False
Injury Date	-
Injury Time	-
Injury Type	0
Injury Height (m)	0
Death Notes	Avalanche
Member Notes	-
Necrology	(1960-1989) Died 21 Mar 1989 on Langtang Lirung from avalanche
Summit Bid	1
Summit Term	5
HCN	0
Checksum	2434825
Summit Note 1	-
Summit Note 2	-
Summit Note 3	-
Death Route	1
Name (lowercase)	noriyuki futami
Year of Birth	1960
Year	1989
Age at Expedition	29
Role	Member

Field	Value
ID	16017
Imported	2026-03-06 18:06:05.675609
Expedition ID	LANG89101
Member ID	03
Peak ID	LANG
Year	1989
Season	1
First Name	Masahiro
Last Name	Hisamoto
Sex	M
Age	0
Birth Date	-
Year of Birth	1968
Calculated Age	20
Citizenship	Japan
Status	Climber
Residence	Hachioji, Tokyo, Japan
Occupation	Sociology student
Leader	False
Deputy	False
Basecamp Only	False
Not to BC	False
Support	False
Disabled	False
Hired	False
Sherpa	False
Tibetan	False
Summit Success	False
Claimed	False
Disputed	False
Solo	False
Traverse	False
Ski	False
Paraglide	False
Speed	-
High Point (m)	False
Personal High Point (m)	0
Summit Date 1	-
Summit Date 2	-
Summit Date 3	-
Summit Time 1	-
Summit Time 2	-
Summit Time 3	-
Route 1	0
Route 2	0
Route 3	0
Ascent 1	0
Ascent 2	0
Ascent 3	0
O2 Used	False
O2 None	True
O2 Climb	False
O2 Descent	False
O2 Sleep	False
O2 Medical	False
O2 Notes	-
Death	True
Death Date	1989-03-21
Death Time	1043
Death Type	7
Death Height (m)	4900
Death Class	3
AMS	False
Weather	False
Injury	False
Injury Date	-
Injury Time	-
Injury Type	0
Injury Height (m)	0
Death Notes	Avalanche
Member Notes	-
Necrology	(1968-1989) Died 21 Mar 1989 on Langtang Lirung from avalanche
Summit Bid	1
Summit Term	5
HCN	0
Checksum	2438018
Summit Note 1	-
Summit Note 2	-
Summit Note 3	-
Death Route	1
Name (lowercase)	masahiro hisamoto
Year of Birth	1968
Year	1989
Age at Expedition	21
Role	Member

Field	Value
ID	16018
Imported	2026-03-06 18:06:05.675609
Expedition ID	LANG89101
Member ID	04
Peak ID	LANG
Year	1989
Season	1
First Name	Kenichi
Last Name	Ikeda
Sex	M
Age	0
Birth Date	-
Year of Birth	1962
Calculated Age	26
Citizenship	Japan
Status	Climber
Residence	Mitaka, Tokyo, Japan
Occupation	Sociology student
Leader	False
Deputy	False
Basecamp Only	False
Not to BC	False
Support	False
Disabled	False
Hired	False
Sherpa	False
Tibetan	False
Summit Success	False
Claimed	False
Disputed	False
Solo	False
Traverse	False
Ski	False
Paraglide	False
Speed	-
High Point (m)	False
Personal High Point (m)	0
Summit Date 1	-
Summit Date 2	-
Summit Date 3	-
Summit Time 1	-
Summit Time 2	-
Summit Time 3	-
Route 1	0
Route 2	0
Route 3	0
Ascent 1	0
Ascent 2	0
Ascent 3	0
O2 Used	False
O2 None	True
O2 Climb	False
O2 Descent	False
O2 Sleep	False
O2 Medical	False
O2 Notes	-
Death	False
Death Date	-
Death Time	-
Death Type	0
Death Height (m)	0
Death Class	0
AMS	False
Weather	False
Injury	False
Injury Date	-
Injury Time	-
Injury Type	0
Injury Height (m)	0
Death Notes	-
Member Notes	-
Necrology	-
Summit Bid	1
Summit Term	5
HCN	0
Checksum	2435687
Summit Note 1	-
Summit Note 2	-
Summit Note 3	-
Death Route	-
Name (lowercase)	kenichi ikeda
Year of Birth	1962
Year	1989
Age at Expedition	27
Role	Member

Field	Value
ID	16019
Imported	2026-03-06 18:06:05.675609
Expedition ID	LANG89101
Member ID	05
Peak ID	LANG
Year	1989
Season	1
First Name	Shogo
Last Name	Imazu
Sex	M
Age	0
Birth Date	-
Year of Birth	1968
Calculated Age	20
Citizenship	Japan
Status	Climber
Residence	Hachioji, Tokyo, Japan
Occupation	Economics student
Leader	False
Deputy	False
Basecamp Only	False
Not to BC	False
Support	False
Disabled	False
Hired	False
Sherpa	False
Tibetan	False
Summit Success	False
Claimed	False
Disputed	False
Solo	False
Traverse	False
Ski	False
Paraglide	False
Speed	-
High Point (m)	False
Personal High Point (m)	0
Summit Date 1	-
Summit Date 2	-
Summit Date 3	-
Summit Time 1	-
Summit Time 2	-
Summit Time 3	-
Route 1	0
Route 2	0
Route 3	0
Ascent 1	0
Ascent 2	0
Ascent 3	0
O2 Used	False
O2 None	True
O2 Climb	False
O2 Descent	False
O2 Sleep	False
O2 Medical	False
O2 Notes	-
Death	False
Death Date	-
Death Time	-
Death Type	0
Death Height (m)	0
Death Class	0
AMS	False
Weather	False
Injury	False
Injury Date	-
Injury Time	-
Injury Type	0
Injury Height (m)	0
Death Notes	-
Member Notes	-
Necrology	-
Summit Bid	1
Summit Term	5
HCN	0
Checksum	2437875
Summit Note 1	-
Summit Note 2	-
Summit Note 3	-
Death Route	-
Name (lowercase)	shogo imazu
Year of Birth	1968
Year	1989
Age at Expedition	21
Role	Member

Field	Value
ID	16020
Imported	2026-03-06 18:06:05.675609
Expedition ID	LANG89101
Member ID	06
Peak ID	LANG
Year	1989
Season	1
First Name	Masaru
Last Name	Inoue
Sex	M
Age	0
Birth Date	-
Year of Birth	1966
Calculated Age	22
Citizenship	Japan
Status	Climber
Residence	Chofu, Tokyo, Japan
Occupation	Law student
Leader	False
Deputy	False
Basecamp Only	False
Not to BC	False
Support	False
Disabled	False
Hired	False
Sherpa	False
Tibetan	False
Summit Success	False
Claimed	False
Disputed	False
Solo	False
Traverse	False
Ski	False
Paraglide	False
Speed	-
High Point (m)	False
Personal High Point (m)	0
Summit Date 1	-
Summit Date 2	-
Summit Date 3	-
Summit Time 1	-
Summit Time 2	-
Summit Time 3	-
Route 1	0
Route 2	0
Route 3	0
Ascent 1	0
Ascent 2	0
Ascent 3	0
O2 Used	False
O2 None	True
O2 Climb	False
O2 Descent	False
O2 Sleep	False
O2 Medical	False
O2 Notes	-
Death	False
Death Date	-
Death Time	-
Death Type	0
Death Height (m)	0
Death Class	0
AMS	False
Weather	False
Injury	False
Injury Date	-
Injury Time	-
Injury Type	0
Injury Height (m)	0
Death Notes	-
Member Notes	-
Necrology	-
Summit Bid	1
Summit Term	5
HCN	0
Checksum	2437213
Summit Note 1	-
Summit Note 2	-
Summit Note 3	-
Death Route	-
Name (lowercase)	masaru inoue
Year of Birth	1966
Year	1989
Age at Expedition	23
Role	Member

Field	Value
ID	16021
Imported	2026-03-06 18:06:05.675609
Expedition ID	LANG89101
Member ID	07
Peak ID	LANG
Year	1989
Season	1
First Name	Yoshifumi
Last Name	Kanai
Sex	M
Age	0
Birth Date	-
Year of Birth	1965
Calculated Age	23
Citizenship	Japan
Status	Climber
Residence	Minamidai, Tokyo, Japan
Occupation	Sociology student
Leader	False
Deputy	False
Basecamp Only	False
Not to BC	False
Support	False
Disabled	False
Hired	False
Sherpa	False
Tibetan	False
Summit Success	False
Claimed	False
Disputed	False
Solo	False
Traverse	False
Ski	False
Paraglide	False
Speed	-
High Point (m)	False
Personal High Point (m)	0
Summit Date 1	-
Summit Date 2	-
Summit Date 3	-
Summit Time 1	-
Summit Time 2	-
Summit Time 3	-
Route 1	0
Route 2	0
Route 3	0
Ascent 1	0
Ascent 2	0
Ascent 3	0
O2 Used	False
O2 None	True
O2 Climb	False
O2 Descent	False
O2 Sleep	False
O2 Medical	False
O2 Notes	-
Death	False
Death Date	-
Death Time	-
Death Type	0
Death Height (m)	0
Death Class	0
AMS	False
Weather	False
Injury	False
Injury Date	-
Injury Time	-
Injury Type	0
Injury Height (m)	0
Death Notes	-
Member Notes	-
Necrology	-
Summit Bid	1
Summit Term	5
HCN	0
Checksum	2436918
Summit Note 1	-
Summit Note 2	-
Summit Note 3	-
Death Route	-
Name (lowercase)	yoshifumi kanai
Year of Birth	1965
Year	1989
Age at Expedition	24
Role	Member

Field	Value
ID	16022
Imported	2026-03-06 18:06:05.675609
Expedition ID	LANG89101
Member ID	08
Peak ID	LANG
Year	1989
Season	1
First Name	Yujiro
Last Name	Kataoka
Sex	M
Age	0
Birth Date	-
Year of Birth	1967
Calculated Age	21
Citizenship	Japan
Status	Climber
Residence	Tokyo, Japan
Occupation	Mechanical engineer
Leader	False
Deputy	False
Basecamp Only	False
Not to BC	False
Support	False
Disabled	False
Hired	False
Sherpa	False
Tibetan	False
Summit Success	False
Claimed	False
Disputed	False
Solo	False
Traverse	False
Ski	False
Paraglide	False
Speed	-
High Point (m)	False
Personal High Point (m)	0
Summit Date 1	-
Summit Date 2	-
Summit Date 3	-
Summit Time 1	-
Summit Time 2	-
Summit Time 3	-
Route 1	0
Route 2	0
Route 3	0
Ascent 1	0
Ascent 2	0
Ascent 3	0
O2 Used	False
O2 None	True
O2 Climb	False
O2 Descent	False
O2 Sleep	False
O2 Medical	False
O2 Notes	-
Death	False
Death Date	-
Death Time	-
Death Type	0
Death Height (m)	0
Death Class	0
AMS	False
Weather	False
Injury	False
Injury Date	-
Injury Time	-
Injury Type	0
Injury Height (m)	0
Death Notes	-
Member Notes	-
Necrology	-
Summit Bid	1
Summit Term	5
HCN	0
Checksum	2437748
Summit Note 1	-
Summit Note 2	-
Summit Note 3	-
Death Route	-
Name (lowercase)	yujiro kataoka
Year of Birth	1967
Year	1989
Age at Expedition	22
Role	Member

Field	Value
ID	16023
Imported	2026-03-06 18:06:05.675609
Expedition ID	LANG89101
Member ID	01
Peak ID	LANG
Year	1989
Season	1
First Name	Yasuo
Last Name	Katsuyama
Sex	M
Age	0
Birth Date	-
Year of Birth	1952
Calculated Age	37
Citizenship	Japan
Status	Leader
Residence	Tokyo, Japan
Occupation	Staff member, printing company
Leader	True
Deputy	False
Basecamp Only	False
Not to BC	False
Support	False
Disabled	False
Hired	False
Sherpa	False
Tibetan	False
Summit Success	False
Claimed	False
Disputed	False
Solo	False
Traverse	False
Ski	False
Paraglide	False
Speed	-
High Point (m)	False
Personal High Point (m)	0
Summit Date 1	-
Summit Date 2	-
Summit Date 3	-
Summit Time 1	-
Summit Time 2	-
Summit Time 3	-
Route 1	0
Route 2	0
Route 3	0
Ascent 1	0
Ascent 2	0
Ascent 3	0
O2 Used	False
O2 None	True
O2 Climb	False
O2 Descent	False
O2 Sleep	False
O2 Medical	False
O2 Notes	-
Death	False
Death Date	-
Death Time	-
Death Type	0
Death Height (m)	0
Death Class	0
AMS	False
Weather	False
Injury	False
Injury Date	-
Injury Time	-
Injury Type	0
Injury Height (m)	0
Death Notes	-
Member Notes	-
Necrology	-
Summit Bid	1
Summit Term	5
HCN	0
Checksum	2431963
Summit Note 1	-
Summit Note 2	-
Summit Note 3	-
Death Route	-
Name (lowercase)	yasuo katsuyama
Year of Birth	1952
Year	1989
Age at Expedition	37
Role	Leader

Field	Value
ID	16024
Imported	2026-03-06 18:06:05.675609
Expedition ID	LANG89101
Member ID	09
Peak ID	LANG
Year	1989
Season	1
First Name	Yasuhisa
Last Name	Kuwashina
Sex	M
Age	0
Birth Date	-
Year of Birth	1965
Calculated Age	23
Citizenship	Japan
Status	Climber
Residence	Chofu, Tokyo, Japan
Occupation	Political science student
Leader	False
Deputy	False
Basecamp Only	False
Not to BC	False
Support	False
Disabled	False
Hired	False
Sherpa	False
Tibetan	False
Summit Success	False
Claimed	False
Disputed	False
Solo	False
Traverse	False
Ski	False
Paraglide	False
Speed	-
High Point (m)	True
Personal High Point (m)	6030
Summit Date 1	1989-03-18
Summit Date 2	-
Summit Date 3	-
Summit Time 1	-
Summit Time 2	-
Summit Time 3	-
Route 1	1
Route 2	0
Route 3	0
Ascent 1	0
Ascent 2	0
Ascent 3	0
O2 Used	False
O2 None	True
O2 Climb	False
O2 Descent	False
O2 Sleep	False
O2 Medical	False
O2 Notes	-
Death	True
Death Date	1989-03-21
Death Time	1043
Death Type	7
Death Height (m)	4900
Death Class	3
AMS	False
Weather	False
Injury	False
Injury Date	-
Injury Time	-
Injury Type	0
Injury Height (m)	0
Death Notes	Avalanche
Member Notes	-
Necrology	(1965-1989) Died 21 Mar 1989 on Langtang Lirung from avalanche
Summit Bid	1
Summit Term	5
HCN	0
Checksum	2436858
Summit Note 1	-
Summit Note 2	-
Summit Note 3	-
Death Route	1
Name (lowercase)	yasuhisa kuwashina
Year of Birth	1965
Year	1989
Age at Expedition	24
Role	Member

Field	Value
ID	16025
Imported	2026-03-06 18:06:05.675609
Expedition ID	LANG89101
Member ID	10
Peak ID	LANG
Year	1989
Season	1
First Name	Nobuo
Last Name	Matsumoto
Sex	M
Age	0
Birth Date	-
Year of Birth	1965
Calculated Age	23
Citizenship	Japan
Status	Climber
Residence	Suginami-ku, Tokyo, Japan
Occupation	Law student
Leader	False
Deputy	False
Basecamp Only	False
Not to BC	False
Support	False
Disabled	False
Hired	False
Sherpa	False
Tibetan	False
Summit Success	False
Claimed	False
Disputed	False
Solo	False
Traverse	False
Ski	False
Paraglide	False
Speed	-
High Point (m)	True
Personal High Point (m)	6030
Summit Date 1	1989-03-18
Summit Date 2	-
Summit Date 3	-
Summit Time 1	-
Summit Time 2	-
Summit Time 3	-
Route 1	1
Route 2	0
Route 3	0
Ascent 1	0
Ascent 2	0
Ascent 3	0
O2 Used	False
O2 None	True
O2 Climb	False
O2 Descent	False
O2 Sleep	False
O2 Medical	False
O2 Notes	-
Death	False
Death Date	-
Death Time	-
Death Type	0
Death Height (m)	0
Death Class	0
AMS	False
Weather	False
Injury	False
Injury Date	-
Injury Time	-
Injury Type	0
Injury Height (m)	0
Death Notes	-
Member Notes	-
Necrology	-
Summit Bid	1
Summit Term	5
HCN	0
Checksum	2436827
Summit Note 1	-
Summit Note 2	-
Summit Note 3	-
Death Route	-
Name (lowercase)	nobuo matsumoto
Year of Birth	1965
Year	1989
Age at Expedition	24
Role	Member

Field	Value
ID	16026
Imported	2026-03-06 18:06:05.675609
Expedition ID	LANG89101
Member ID	11
Peak ID	LANG
Year	1989
Season	1
First Name	Satoshi
Last Name	Nishimura
Sex	M
Age	0
Birth Date	-
Year of Birth	1956
Calculated Age	32
Citizenship	Japan
Status	Climber
Residence	Tokyo, Japan
Occupation	Unemployed (has been office worker)
Leader	False
Deputy	False
Basecamp Only	False
Not to BC	False
Support	False
Disabled	False
Hired	False
Sherpa	False
Tibetan	False
Summit Success	False
Claimed	False
Disputed	False
Solo	False
Traverse	False
Ski	False
Paraglide	False
Speed	-
High Point (m)	True
Personal High Point (m)	6030
Summit Date 1	1989-03-18
Summit Date 2	-
Summit Date 3	-
Summit Time 1	-
Summit Time 2	-
Summit Time 3	-
Route 1	1
Route 2	0
Route 3	0
Ascent 1	0
Ascent 2	0
Ascent 3	0
O2 Used	False
O2 None	True
O2 Climb	False
O2 Descent	False
O2 Sleep	False
O2 Medical	False
O2 Notes	-
Death	False
Death Date	-
Death Time	-
Death Type	0
Death Height (m)	0
Death Class	0
AMS	False
Weather	False
Injury	False
Injury Date	-
Injury Time	-
Injury Type	0
Injury Height (m)	0
Death Notes	-
Member Notes	-
Necrology	-
Summit Bid	1
Summit Term	5
HCN	0
Checksum	2433646
Summit Note 1	-
Summit Note 2	-
Summit Note 3	-
Death Route	-
Name (lowercase)	satoshi nishimura
Year of Birth	1956
Year	1989
Age at Expedition	33
Role	Member

Field	Value
ID	16027
Imported	2026-03-06 18:06:05.675609
Expedition ID	LANG89101
Member ID	12
Peak ID	LANG
Year	1989
Season	1
First Name	Kenichi
Last Name	Saito
Sex	M
Age	0
Birth Date	-
Year of Birth	1967
Calculated Age	21
Citizenship	Japan
Status	Climber
Residence	Akishima, Tokyo, Japan
Occupation	Philosophy student
Leader	False
Deputy	False
Basecamp Only	False
Not to BC	False
Support	False
Disabled	False
Hired	False
Sherpa	False
Tibetan	False
Summit Success	False
Claimed	False
Disputed	False
Solo	False
Traverse	False
Ski	False
Paraglide	False
Speed	-
High Point (m)	False
Personal High Point (m)	0
Summit Date 1	-
Summit Date 2	-
Summit Date 3	-
Summit Time 1	-
Summit Time 2	-
Summit Time 3	-
Route 1	0
Route 2	0
Route 3	0
Ascent 1	0
Ascent 2	0
Ascent 3	0
O2 Used	False
O2 None	True
O2 Climb	False
O2 Descent	False
O2 Sleep	False
O2 Medical	False
O2 Notes	-
Death	False
Death Date	-
Death Time	-
Death Type	0
Death Height (m)	0
Death Class	0
AMS	False
Weather	False
Injury	False
Injury Date	-
Injury Time	-
Injury Type	0
Injury Height (m)	0
Death Notes	-
Member Notes	-
Necrology	-
Summit Bid	1
Summit Term	5
HCN	0
Checksum	2437593
Summit Note 1	-
Summit Note 2	-
Summit Note 3	-
Death Route	-
Name (lowercase)	kenichi saito
Year of Birth	1967
Year	1989
Age at Expedition	22
Role	Member

Field	Value
ID	16028
Imported	2026-03-06 18:06:05.675609
Expedition ID	LANG89101
Member ID	13
Peak ID	LANG
Year	1989
Season	1
First Name	Toshio
Last Name	Yamamoto
Sex	M
Age	0
Birth Date	-
Year of Birth	1936
Calculated Age	52
Citizenship	Japan
Status	Climber
Residence	Tokyo, Japan
Occupation	Advertising agency owner
Leader	False
Deputy	False
Basecamp Only	False
Not to BC	False
Support	False
Disabled	False
Hired	False
Sherpa	False
Tibetan	False
Summit Success	False
Claimed	False
Disputed	False
Solo	False
Traverse	False
Ski	False
Paraglide	False
Speed	-
High Point (m)	False
Personal High Point (m)	0
Summit Date 1	-
Summit Date 2	-
Summit Date 3	-
Summit Time 1	-
Summit Time 2	-
Summit Time 3	-
Route 1	0
Route 2	0
Route 3	0
Ascent 1	0
Ascent 2	0
Ascent 3	0
O2 Used	False
O2 None	True
O2 Climb	False
O2 Descent	False
O2 Sleep	False
O2 Medical	False
O2 Notes	-
Death	False
Death Date	-
Death Time	-
Death Type	0
Death Height (m)	0
Death Class	0
AMS	False
Weather	False
Injury	False
Injury Date	-
Injury Time	-
Injury Type	0
Injury Height (m)	0
Death Notes	-
Member Notes	-
Necrology	-
Summit Bid	1
Summit Term	5
HCN	0
Checksum	2426288
Summit Note 1	-
Summit Note 2	-
Summit Note 3	-
Death Route	-
Name (lowercase)	toshio yamamoto
Year of Birth	1936
Year	1989
Age at Expedition	53
Role	Member

13 recorded members.

Name	Sex	Year of Birth	Citizenship	Status	Residence	Occupation
Noriyuki Futami	M	1960	Japan	Climber	Yokohama, Japan	Economics student	Details Other expeditions
Masahiro Hisamoto	M	1968	Japan	Climber	Hachioji, Tokyo, Japan	Sociology student	Details Other expeditions
Kenichi Ikeda	M	1962	Japan	Climber	Mitaka, Tokyo, Japan	Sociology student	Details Other expeditions
Shogo Imazu	M	1968	Japan	Climber	Hachioji, Tokyo, Japan	Economics student	Details Other expeditions
Masaru Inoue	M	1966	Japan	Climber	Chofu, Tokyo, Japan	Law student	Details Other expeditions
Yoshifumi Kanai	M	1965	Japan	Climber	Minamidai, Tokyo, Japan	Sociology student	Details Other expeditions
Yujiro Kataoka	M	1967	Japan	Climber	Tokyo, Japan	Mechanical engineer	Details Other expeditions
Yasuo Katsuyama	M	1952	Japan	Leader	Tokyo, Japan	Staff member, printing company	Details Other expeditions
Yasuhisa Kuwashina	M	1965	Japan	Climber	Chofu, Tokyo, Japan	Political science student	Details Other expeditions
Nobuo Matsumoto	M	1965	Japan	Climber	Suginami-ku, Tokyo, Japan	Law student	Details Other expeditions
Satoshi Nishimura	M	1956	Japan	Climber	Tokyo, Japan	Unemployed (has been office worker)	Details Other expeditions
Kenichi Saito	M	1967	Japan	Climber	Akishima, Tokyo, Japan	Philosophy student	Details Other expeditions
Toshio Yamamoto	M	1936	Japan	Climber	Tokyo, Japan	Advertising agency owner	Details Other expeditions

References

Field	Value
ID	608
Imported	2026-03-06 18:06:36.307770
Expedition ID	LANG89101
Reference ID	01
Year	1989
Type	2
Journal	AAJ
Author	-
Title	-
Publisher	-
Publication Date	1990
Language	-
Citation	64:240 (1990)
Yak 94	-
Notes	-

Field	Value
ID	4491
Imported	2026-03-06 18:06:36.307770
Expedition ID	LANG89101
Reference ID	02
Year	1989
Type	3
Journal	MM
Author	-
Title	-
Publisher	-
Publication Date	1989
Language	-
Citation	128:15 (Jul 1989)
Yak 94	-
Notes	-

Field	Value
ID	6723
Imported	2026-03-06 18:06:36.307770
Expedition ID	LANG89101
Reference ID	03
Year	1989
Type	3
Journal	IWA
Author	-
Title	-
Publisher	-
Publication Date	1990
Language	Japanese w/English summary
Citation	:280 (1990)
Yak 94	-
Notes	-

Field	Value
ID	6855
Imported	2026-03-06 18:06:36.307770
Expedition ID	LANG89101
Reference ID	04
Year	1989
Type	3
Journal	IWA
Author	-
Title	-
Publisher	-
Publication Date	1990
Language	Japanese
Citation	:75 (1990)
Yak 94	-
Notes	-

Field	Value
ID	11752
Imported	2026-03-06 18:06:36.307770
Expedition ID	LANG89101
Reference ID	05
Year	1989
Type	5
Journal	-
Author	-
Title	http://publications.americanalpineclub.org/articles/12199024003/Asia-Nepal-Langtang-Lirung-Tragedy
Publisher	-
Publication Date	-
Language	-
Citation	-
Yak 94	-
Notes	-

5 recorded references.

Expedition ID	Journal	Author	Title	Publisher	Citation	Yak 94
LANG89101	AAJ	-	-	-	64:240 (1990)	-
LANG89101	MM	-	-	-	128:15 (Jul 1989)	-
LANG89101	IWA	-	-	-	:280 (1990)	-
LANG89101	IWA	-	-	-	:75 (1990)	-
LANG89101	-	-	http://publications.americanalpineclub.org/articles/12199024003/Asia-Nepal-Langtang-Lirung-Tragedy	-	-	-