Everest | 2005 N Col-NE Ridge

A Japan expedition to Everest in 2005 via N Col-NE Ridge, led by Sato Chieko. Summit reached on 28th May 2005. 3 members recorded.

Expedition Details

Field	Value
ID	4886
Imported	2026-03-06 18:04:49.359634
Expedition ID	EVER05101
Peak ID	EVER
Year	2005
Season	1
Host Country	2
Route 1	N Col-NE Ridge
Route 2	-
Route 3	-
Route 4	-
Nationality	Japan
Leaders	Sato Chieko
Sponsor	International Arun Everest Expedition
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	Lhasa->Xigatse->Xigar->BC
Basecamp Date	2005-04-05
Summit Date	2005-05-28
Summit Time	-
Summit Days	53
Total Days	57
Termination Date	2005-06-01
Termination Reason	8
Termination Notes	Abandoned at 8300m due to not enough oxygen, sick Sherpa
High Point (m)	8300
Traverse	False
Ski	False
Paraglide	False
Camps	3
Fixed Rope (m)	0
Total Members	1
Summit Members	0
Member Deaths	0
Total Hired	4
Summit Hired	0
Hired Deaths	0
No Hired	False
O2 Used	True
O2 None	False
O2 Climb	True
O2 Descent	False
O2 Sleep	False
O2 Medical	False
O2 Taken	False
O2 Unknown	False
Other Summits	-
Campsites	BC(06/04,5200m),ABC(11/04,6450m),C1(23/04,7100m),C2(26/05,7700m),C3(28/05,8300m),xxx(28/05,8300m)
Route Notes	Chieko says that there was not enough oxygen left at C3. She had used 6 bottles and there were only 5 left at C3. However, other climbers on the mountain (Ryan Allen, Ambrose Bittner of Alongi team) say Chieko was just not strong enough and very slow; KTM arrival: 2 June KTM departure: 4 June Sherpas: Pasang Sherpa Tenzing Sherpa Lhakpa Sherpa Sonam Sherpa
Accidents	Sonam was altitude sick at C2 (vomiting)
Achievement	-
Agency	Arun Treks
Commercial Route	True
Standard Route	True
Primary Route	False
Primary Member	False
Primary Reference	False
Primary ID	-
Checksum	2459664
Year	2005
Summit Success	False
O2 Summary	Used
Route (lowercase)	n col-ne ridge

Members

Field	Value
ID	37577
Imported	2026-03-06 18:06:05.675609
Expedition ID	EVER05101
Member ID	01
Peak ID	EVER
Year	2005
Season	1
First Name	Sato
Last Name	Chieko
Sex	F
Age	0
Birth Date	-
Year of Birth	1946
Calculated Age	58
Citizenship	Japan
Status	Leader
Residence	Titose, Hokkaido, Japan
Occupation	Housewife
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)	True
Personal High Point (m)	8300
Summit Date 1	2005-05-28
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	True
O2 None	False
O2 Climb	True
O2 Descent	False
O2 Sleep	False
O2 Medical	False
O2 Notes	From 7000m (used 6 bottles)
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	3
Summit Term	13
HCN	0
Checksum	2430072
Summit Note 1	-
Summit Note 2	-
Summit Note 3	-
Death Route	-
Name (lowercase)	sato chieko
Year of Birth	1946
Year	2005
Age at Expedition	59
Role	Leader

Field	Value
ID	44499
Imported	2026-03-06 18:06:05.675609
Expedition ID	EVER05101
Member ID	02
Peak ID	EVER
Year	2005
Season	1
First Name	Tenzing
Last Name	Sherpa
Sex	M
Age	0
Birth Date	-
Year of Birth	-
Calculated Age	0
Citizenship	Nepal
Status	H-A Worker
Residence	-
Occupation	-
Leader	False
Deputy	False
Basecamp Only	False
Not to BC	False
Support	False
Disabled	False
Hired	True
Sherpa	True
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)	8300
Summit Date 1	2005-05-28
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	3
Summit Term	14
HCN	0
Checksum	-89
Summit Note 1	-
Summit Note 2	-
Summit Note 3	-
Death Route	-
Name (lowercase)	tenzing sherpa
Year of Birth	-
Year	2005
Age at Expedition	-
Role	Hired

Field	Value
ID	44500
Imported	2026-03-06 18:06:05.675609
Expedition ID	EVER05101
Member ID	03
Peak ID	EVER
Year	2005
Season	1
First Name	Pasang
Last Name	Sherpa
Sex	M
Age	0
Birth Date	-
Year of Birth	-
Calculated Age	0
Citizenship	Nepal
Status	H-A Worker
Residence	-
Occupation	-
Leader	False
Deputy	False
Basecamp Only	False
Not to BC	False
Support	False
Disabled	False
Hired	True
Sherpa	True
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)	8300
Summit Date 1	2005-05-28
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	3
Summit Term	14
HCN	0
Checksum	-89
Summit Note 1	-
Summit Note 2	-
Summit Note 3	-
Death Route	-
Name (lowercase)	pasang sherpa
Year of Birth	-
Year	2005
Age at Expedition	-
Role	Hired

3 recorded members.

Name	Sex	Year of Birth	Citizenship	Status	Residence	Occupation
Sato Chieko	F	1946	Japan	Leader	Titose, Hokkaido, Japan	Housewife	Details Other expeditions
Tenzing Sherpa	M	-	Nepal	H-A Worker	-	-	Details Other expeditions
Pasang Sherpa	M	-	Nepal	H-A Worker	-	-	Details Other expeditions

References

0 recorded references.