Cho Oyu | 2003 NW side

A Japan expedition to Cho Oyu in 2003 via NW side, led by Takaharu Hayashi. Summit reached on 21st September 2003. 8 members recorded.

Expedition Details

Field	Value
ID	4463
Imported	2026-03-06 18:04:49.359634
Expedition ID	CHOY03319
Peak ID	CHOY
Year	2003
Season	3
Host Country	2
Route 1	NW side
Route 2	-
Route 3	-
Route 4	-
Nationality	Japan
Leaders	Takaharu Hayashi
Sponsor	Karang Kurung Mountaineering Club Cho Oyu Expedition 2003
Success 1	True
Success 2	False
Success 3	False
Success 4	False
Ascent 1	-
Ascent 2	-
Ascent 3	-
Ascent 4	-
Claimed	False
Disputed	False
Countries	-
Approach	Lhasa->BC
Basecamp Date	2003-09-01
Summit Date	2003-09-21
Summit Time	1000
Summit Days	20
Total Days	24
Termination Date	2003-09-25
Termination Reason	1
Termination Notes	-
High Point (m)	8188
Traverse	False
Ski	False
Paraglide	False
Camps	3
Fixed Rope (m)	0
Total Members	5
Summit Members	4
Member Deaths	0
Total Hired	3
Summit Hired	3
Hired Deaths	0
No Hired	False
O2 Used	True
O2 None	False
O2 Climb	True
O2 Descent	False
O2 Sleep	True
O2 Medical	False
O2 Taken	False
O2 Unknown	False
Other Summits	-
Campsites	BC(01/09),ABC(04/09,5500m),C1(11/09,6200m),C2(19/09,7200m),C3(20/09,7400m),Smt(21/09)
Route Notes	Summit team of 4 members and 3 Sherpas left C3 for top 2:30 am (NST) and on top 10:00 am together; saw Everest from top. Return to C3 at 2:00 pm, down to C2 at 3:30 pm for night. Oxygen: Sherpas none 4 members: 2 women sleeping in C2 and all way to top, and to top in C2 (Sato also C2 to ABC (altitude sick and snowblindness) 2 men: Yamashita C2 to C3, climbing to top to C2 Summit Sherpas: Temba Wangdi, Makalu-9, 29/1/60, Cho Oyu X1 Lhakpa Sherpa, Makalu-9, 1st 8000er (brother of Pasang Gelji) Pasang Gelji, Makalu-9, 4/7/67, 1st 8000er (brother of Lhakpa)
Accidents	Tetsugo Oketa altitude problem and spent time in ABC; Sato also altitude sick and snowblind
Achievement	-
Agency	Iceland Trekking
Commercial Route	True
Standard Route	True
Primary Route	False
Primary Member	False
Primary Reference	False
Primary ID	-
Checksum	2458282
Year	2003
Summit Success	True
O2 Summary	Used
Route (lowercase)	nw side

Members

Field	Value
ID	34657
Imported	2026-03-06 18:06:05.675609
Expedition ID	CHOY03319
Member ID	01
Peak ID	CHOY
Year	2003
Season	3
First Name	Takaharu
Last Name	Hayashi
Sex	M
Age	0
Birth Date	-
Year of Birth	1951
Calculated Age	51
Citizenship	Japan
Status	Leader
Residence	Habikino, Osaka, Japan
Occupation	Owner of shop selling audio and visual software
Leader	True
Deputy	False
Basecamp Only	False
Not to BC	False
Support	False
Disabled	False
Hired	False
Sherpa	False
Tibetan	False
Summit Success	True
Claimed	False
Disputed	False
Solo	False
Traverse	False
Ski	False
Paraglide	False
Speed	-
High Point (m)	True
Personal High Point (m)	8188
Summit Date 1	2003-09-21
Summit Date 2	-
Summit Date 3	-
Summit Time 1	1000
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	True
O2 None	False
O2 Climb	True
O2 Descent	False
O2 Sleep	False
O2 Medical	False
O2 Notes	Climbing C2 to top and back to C2
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	5
Summit Term	1
HCN	0
Checksum	2431903
Summit Note 1	-
Summit Note 2	-
Summit Note 3	-
Death Route	-
Name (lowercase)	takaharu hayashi
Year of Birth	1951
Year	2003
Age at Expedition	52
Role	Leader

Field	Value
ID	34658
Imported	2026-03-06 18:06:05.675609
Expedition ID	CHOY03319
Member ID	02
Peak ID	CHOY
Year	2003
Season	3
First Name	Hiroko
Last Name	Kunieda
Sex	F
Age	0
Birth Date	-
Year of Birth	1940
Calculated Age	63
Citizenship	Japan
Status	Climber
Residence	Toyonaka, Osaka, Japan
Occupation	Housewife
Leader	False
Deputy	False
Basecamp Only	False
Not to BC	False
Support	False
Disabled	False
Hired	False
Sherpa	False
Tibetan	False
Summit Success	True
Claimed	False
Disputed	False
Solo	False
Traverse	False
Ski	False
Paraglide	False
Speed	-
High Point (m)	True
Personal High Point (m)	8188
Summit Date 1	2003-09-21
Summit Date 2	-
Summit Date 3	-
Summit Time 1	1000
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	True
O2 None	False
O2 Climb	True
O2 Descent	False
O2 Sleep	True
O2 Medical	False
O2 Notes	In C2 sleeping, to top and back to C2
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	5
Summit Term	1
HCN	0
Checksum	2427653
Summit Note 1	-
Summit Note 2	-
Summit Note 3	-
Death Route	-
Name (lowercase)	hiroko kunieda
Year of Birth	1940
Year	2003
Age at Expedition	63
Role	Member

Field	Value
ID	34659
Imported	2026-03-06 18:06:05.675609
Expedition ID	CHOY03319
Member ID	03
Peak ID	CHOY
Year	2003
Season	3
First Name	Tetsugo
Last Name	Oketa
Sex	M
Age	0
Birth Date	-
Year of Birth	1941
Calculated Age	61
Citizenship	Japan
Status	Climber
Residence	Yao, Osaka, Japan
Occupation	Retired owner of products company
Leader	False
Deputy	False
Basecamp Only	True
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)	5500
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	6
HCN	0
Checksum	2428397
Summit Note 1	-
Summit Note 2	-
Summit Note 3	-
Death Route	-
Name (lowercase)	tetsugo oketa
Year of Birth	1941
Year	2003
Age at Expedition	62
Role	BC Only

Field	Value
ID	34660
Imported	2026-03-06 18:06:05.675609
Expedition ID	CHOY03319
Member ID	04
Peak ID	CHOY
Year	2003
Season	3
First Name	Chieko
Last Name	Sato
Sex	F
Age	0
Birth Date	-
Year of Birth	1945
Calculated Age	57
Citizenship	Japan
Status	Climber
Residence	Chitose, Hokkaido, Japan
Occupation	Housewife
Leader	False
Deputy	False
Basecamp Only	False
Not to BC	False
Support	False
Disabled	False
Hired	False
Sherpa	False
Tibetan	False
Summit Success	True
Claimed	False
Disputed	False
Solo	False
Traverse	False
Ski	False
Paraglide	False
Speed	-
High Point (m)	True
Personal High Point (m)	8188
Summit Date 1	2003-09-21
Summit Date 2	-
Summit Date 3	-
Summit Time 1	1000
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	True
O2 None	False
O2 Climb	True
O2 Descent	False
O2 Sleep	True
O2 Medical	False
O2 Notes	In C2 sleeping, to top and back to C2
Death	False
Death Date	-
Death Time	-
Death Type	0
Death Height (m)	0
Death Class	0
AMS	False
Weather	False
Injury	True
Injury Date	2003-09-21
Injury Time	-
Injury Type	3
Injury Height (m)	8200
Death Notes	-
Member Notes	-
Necrology	-
Summit Bid	5
Summit Term	1
HCN	0
Checksum	2429731
Summit Note 1	-
Summit Note 2	-
Summit Note 3	-
Death Route	-
Name (lowercase)	chieko sato
Year of Birth	1945
Year	2003
Age at Expedition	58
Role	Member

Field	Value
ID	34661
Imported	2026-03-06 18:06:05.675609
Expedition ID	CHOY03319
Member ID	05
Peak ID	CHOY
Year	2003
Season	3
First Name	Kiyoshi
Last Name	Yamashita
Sex	M
Age	0
Birth Date	-
Year of Birth	1950
Calculated Age	53
Citizenship	Japan
Status	Climber
Residence	Hiroshima, Japan
Occupation	President of civil engineering company
Leader	False
Deputy	False
Basecamp Only	False
Not to BC	False
Support	False
Disabled	False
Hired	False
Sherpa	False
Tibetan	False
Summit Success	True
Claimed	False
Disputed	False
Solo	False
Traverse	False
Ski	False
Paraglide	False
Speed	-
High Point (m)	True
Personal High Point (m)	8188
Summit Date 1	2003-09-21
Summit Date 2	-
Summit Date 3	-
Summit Time 1	1000
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	True
O2 None	False
O2 Climb	True
O2 Descent	False
O2 Sleep	False
O2 Medical	False
O2 Notes	Climbing C2 to top and back to C2
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	5
Summit Term	1
HCN	0
Checksum	2431471
Summit Note 1	-
Summit Note 2	-
Summit Note 3	-
Death Route	-
Name (lowercase)	kiyoshi yamashita
Year of Birth	1950
Year	2003
Age at Expedition	53
Role	Member

Field	Value
ID	34662
Imported	2026-03-06 18:06:05.675609
Expedition ID	CHOY03319
Member ID	08
Peak ID	CHOY
Year	2003
Season	3
First Name	Temba Wangdi (Pemba Wangdi)
Last Name	Sherpa
Sex	M
Age	0
Birth Date	-
Year of Birth	1960
Calculated Age	43
Citizenship	Nepal
Status	H-A Worker
Residence	Walung, Makalu-9, Makalu-Barun
Occupation	-
Leader	False
Deputy	False
Basecamp Only	False
Not to BC	False
Support	False
Disabled	False
Hired	True
Sherpa	True
Tibetan	False
Summit Success	True
Claimed	False
Disputed	False
Solo	False
Traverse	False
Ski	False
Paraglide	False
Speed	-
High Point (m)	True
Personal High Point (m)	8188
Summit Date 1	2003-09-21
Summit Date 2	-
Summit Date 3	-
Summit Time 1	1000
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	2nd ascent of Cho Oyu; aka Pemba Ongdu Lama
Necrology	(1960-2006) Died 14 Oct 2006 on Pumori from avalanche
Summit Bid	5
Summit Term	1
HCN	0
Checksum	2434937
Summit Note 1	-
Summit Note 2	-
Summit Note 3	-
Death Route	-
Name (lowercase)	temba wangdi (pemba wangdi) sherpa
Year of Birth	1960
Year	2003
Age at Expedition	43
Role	Hired

Field	Value
ID	34663
Imported	2026-03-06 18:06:05.675609
Expedition ID	CHOY03319
Member ID	06
Peak ID	CHOY
Year	2003
Season	3
First Name	Lhakpa
Last Name	Sherpa
Sex	M
Age	0
Birth Date	-
Year of Birth	1965
Calculated Age	38
Citizenship	Nepal
Status	H-A Worker
Residence	Makalu-9, Makalu-Barun
Occupation	-
Leader	False
Deputy	False
Basecamp Only	False
Not to BC	False
Support	False
Disabled	False
Hired	True
Sherpa	True
Tibetan	False
Summit Success	True
Claimed	False
Disputed	False
Solo	False
Traverse	False
Ski	False
Paraglide	False
Speed	-
High Point (m)	True
Personal High Point (m)	8188
Summit Date 1	2003-09-21
Summit Date 2	-
Summit Date 3	-
Summit Time 1	1000
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	1st 8000er; brother of Pasang Gelji (Makalu-Barun)
Necrology	-
Summit Bid	5
Summit Term	1
HCN	0
Checksum	2436847
Summit Note 1	-
Summit Note 2	-
Summit Note 3	-
Death Route	-
Name (lowercase)	lhakpa sherpa
Year of Birth	1965
Year	2003
Age at Expedition	38
Role	Hired

Field	Value
ID	34664
Imported	2026-03-06 18:06:05.675609
Expedition ID	CHOY03319
Member ID	07
Peak ID	CHOY
Year	2003
Season	3
First Name	Pasang Gelji (Pasang Gelze)
Last Name	Sherpa
Sex	M
Age	0
Birth Date	-
Year of Birth	1967
Calculated Age	36
Citizenship	Nepal
Status	H-A Worker
Residence	Walung, Makalu-9, Makalu-Barun
Occupation	-
Leader	False
Deputy	False
Basecamp Only	False
Not to BC	False
Support	False
Disabled	False
Hired	True
Sherpa	True
Tibetan	False
Summit Success	True
Claimed	False
Disputed	False
Solo	False
Traverse	False
Ski	False
Paraglide	False
Speed	-
High Point (m)	True
Personal High Point (m)	8188
Summit Date 1	2003-09-21
Summit Date 2	-
Summit Date 3	-
Summit Time 1	1000
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	1st 8000er; brother of Lhakpa (Makalu-Barun)
Necrology	-
Summit Bid	5
Summit Term	1
HCN	0
Checksum	2437643
Summit Note 1	-
Summit Note 2	-
Summit Note 3	-
Death Route	-
Name (lowercase)	pasang gelji (pasang gelze) sherpa
Year of Birth	1967
Year	2003
Age at Expedition	36
Role	Hired

8 recorded members.

Name	Sex	Year of Birth	Citizenship	Status	Residence	Occupation
Takaharu Hayashi	M	1951	Japan	Leader	Habikino, Osaka, Japan	Owner of shop selling audio and visual software	Details Other expeditions
Hiroko Kunieda	F	1940	Japan	Climber	Toyonaka, Osaka, Japan	Housewife	Details Other expeditions
Tetsugo Oketa	M	1941	Japan	Climber	Yao, Osaka, Japan	Retired owner of products company	Details Other expeditions
Chieko Sato	F	1945	Japan	Climber	Chitose, Hokkaido, Japan	Housewife	Details Other expeditions
Kiyoshi Yamashita	M	1950	Japan	Climber	Hiroshima, Japan	President of civil engineering company	Details Other expeditions
Temba Wangdi (Pemba Wangdi) Sherpa	M	1960	Nepal	H-A Worker	Walung, Makalu-9, Makalu-Barun	-	Details Other expeditions
Lhakpa Sherpa	M	1965	Nepal	H-A Worker	Makalu-9, Makalu-Barun	-	Details Other expeditions
Pasang Gelji (Pasang Gelze) Sherpa	M	1967	Nepal	H-A Worker	Walung, Makalu-9, Makalu-Barun	-	Details Other expeditions

References

0 recorded references.