Ama Dablam | 1989 N Ridge
A Japan expedition to Ama Dablam in 1989 via N Ridge, led by Teijiro Namba. Summit reached on 25th April 1989. 6 members recorded.
Expedition Details
| Field | Value |
|---|---|
| ID | 816 |
| Imported | 2026-03-06 18:04:49.359634 |
| Expedition ID | AMAD89104 |
| Peak ID | AMAD |
| Year | 1989 |
| Season | 1 |
| Host Country | 1 |
| Route 1 | N Ridge |
| Route 2 | - |
| Route 3 | - |
| Route 4 | - |
| Nationality | Japan |
| Leaders | Teijiro Namba |
| Sponsor | Japanese Mountaineering Group Ama Dablam 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 | - |
| Basecamp Date | 1989-04-12 |
| Summit Date | 1989-04-25 |
| Summit Time | - |
| Summit Days | 13 |
| Total Days | 18 |
| Termination Date | 1989-04-30 |
| Termination Reason | 5 |
| Termination Notes | Abandoned at 5900m due to rockfall danger and lack of fuel supply |
| High Point (m) | 5900 |
| Traverse | False |
| Ski | False |
| Paraglide | False |
| Camps | 1 |
| Fixed Rope (m) | 0 |
| Total Members | 6 |
| Summit Members | 0 |
| Member Deaths | 0 |
| Total Hired | 0 |
| Summit Hired | 0 |
| Hired Deaths | 0 |
| No Hired | True |
| 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(12/04,4900m),C1(21/04,5550m),xxx(25/04,5900m) |
| Route Notes | BC on Ama Dablam Glacier C1 on North Ridge High point on North Ridge. Before making C1, at 5450m rock avalanche damaged fixed rope; replaced rope but very dangerous climbing this area and some members didn't want to climb here; kept on going. 26th April to BC and kerosene finished (very expensive in Namche and money finished). Much falling rock from base rock and several times members very nearly hit in this dangerous areas at 5450m and 5700m. |
| Accidents | None |
| Achievement | - |
| Agency | Atlas |
| Commercial Route | False |
| Standard Route | - |
| Primary Route | False |
| Primary Member | False |
| Primary Reference | - |
| Primary ID | - |
| Checksum | 2452511 |
| Year | 1989 |
| Summit Success | False |
| O2 Summary | None |
| Route (lowercase) | n ridge |
Members
6 recorded members.
| Name | Sex | Year of Birth | Citizenship | Status | Residence | Occupation | |
|---|---|---|---|---|---|---|---|
| Kyoko Horikawa | F | 1963 | Japan | Climber | Nara-shi, Nara, Japan | Office worker, clothing manufacturing company | Details Other expeditions |
| Harumi Ichimura | F | 1965 | Japan | Climber | Kobe, Hyogo, Japan | Architect | Details Other expeditions |
| Seisuku Kurokawa | M | 1965 | Japan | Climber | Nishinomiya, Hyogo, Japan | University student of biology & oceanography | Details Other expeditions |
| Teijiro Namba | M | 1961 | Japan | Leader | Kobe, Hyogo, Japan | Telephone engineer | Details Other expeditions |
| Masashi Tatsuta | M | 1961 | Japan | Deputy Leader | Kyoto, Japan | Salesman, sports | Details Other expeditions |
| Yoshimi Tatsuta | F | 1961 | Japan | Climber | Kyoto, Japan | Insurance saleswoman | Details Other expeditions |
References
4 recorded references.
| Expedition ID | Journal | Author | Title | Publisher | Citation | Yak 94 |
|---|---|---|---|---|---|---|
| AMAD89104 | AAJ | Namba, Teijiro | - | - | 64:222 (1990) | - |
| AMAD89104 | IWA | - | - | - | :280 (1990) | - |
| AMAD89104 | IWA | - | - | - | :61 (1990) | - |
| AMAD89104 | - | - | http://publications.americanalpineclub.org/articles/12199022203/Asia-Nepal-Ama-Dablam-Attempt | - | - | - |