Nihon YS-11A-600 N173RV
27 March 1991 · Anchorage, Alaska, United States · No injuries
Summary
On 27 March 1991 at about 20:23 local time, a Nihon YS-11A-600 registered N173RV, operated by Reeve Aleutian Airways, Inc., was involved in an incident near Anchorage, Alaska, United States. 4 people were on board and nobody was injured. The aircraft was slightly damaged. The NTSB has published a probable cause for this accident; it is quoted in full below.
The record
- Date
- at 20:23
- Classification
- Incident
- Location
- Anchorage, Alaska, United States
- Nearest airport
- Anchorage (ANC)
- Coordinates
- 61.1600, -149.9903
- Aircraft
- Nihon YS-11A-600
- Registration
- N173RV
- Category
- Airplane
- Engines
- 2
- Operator
- Reeve Aleutian Airways, Inc.
- Operating rule
- Part 91: General Aviation
- Purpose of flight
- Instructional
- Phase of flight
- Not recorded
- Aircraft damage
- Minor
- Weather
- VMC
- Light
- Day
- NTSB number
- ANC91IA046
People
Nobody was injured.
| On board | Died | Serious | Minor | Uninjured |
|---|---|---|---|---|
| 4 | 0 | 0 | 0 | 4 |
Probable cause
A JAMMED NOSE GEAR DUE TO INCORRECT INSTALLATION OF THE SHEAR PIN. CONTRIBUTING TO THE ACCIDENT WAS THE INSUFFICIENTLY DEFINED MAINTENANCE PROCEDURE.
Quoted verbatim from the NTSB record. This site does not paraphrase or interpret it.
Read the full NTSB narrative
THE CREW OF FOUR WERE ON A TRAINING FLIGHT AND WERE PREPARING TO PERFORM APPROACH TO LANDING STALLS. DURING THE MANEUVER, THEY NOTICED THE NOSE GEAR WOULD NOT EXTEND. UNABLE TO EXTEND THE NOSE GEAR, THEY LANDED WITH THE NOSE GEAR UP CAUSING MINOR DAMAGE TO THE AIRPLANE. SUBSEQUENT EXAMINATION REVEALED THAT THE RIVETS WHICH RETAIN THE CENTERING CAM SHEAR PINS WERE SHEARED. THE SHEAR PINS WERE NOT SHEARED. AN EXAMINATION BY MITSUBISHI HEAVY INDUSTRIES, NAGOYA AIRPLANE WORKS, INDICATED THAT THE SHEAR PINS MAY HAVE BEEN INSTALLED IN REVERSE. THE OVERHAUL MANUAL ALSO CONTAINED AMBIGUOUS INFORMATION CONCERNING THE INFORMATION. THE GRAPHICAL DISPLAY SHOWED THE INSTALLATION INCORRECTLY, BUT THE TEXT EXPLAINED THE INSTALLATION CORRECTLY.
Quoted verbatim from the NTSB record.
Other Nihon YS-11A accidents
| Date | Aircraft | Location | Operator | Outcome | Died |
|---|---|---|---|---|---|
| 3 Apr 1990 | Nihon YS-11A-600F | West Lafayette, Indiana, United States | - | No injuries | - |
| 15 Mar 1989 | Nihon YS-11A-600 | West Lafayette, Indiana, United States | Mid Pacific Airlines | Fatal | 2 |
| 10 Apr 1987 | Nihon YS-11A | Honolulu, Hawaii, United States | - | Serious injuries | - |
| 13 Jan 1987 | Nihon YS-11A-500 | Remmington, Indiana, United States | - | No injuries | - |
| 16 Feb 1982 | Nihon YS-11A | King Salmon, Alaska, United States | Reeve Aleutian | Minor injuries | - |
| 18 Apr 1981 | Nihon YS-11A | Sand Point, Alaska, United States | Reeve Aleutian Airways, Inc. | No injuries | - |
Other accidents in this area
| Date | Aircraft | Location | Operator | Outcome | Died |
|---|---|---|---|---|---|
| 1 Mar 1991 | Piper PA-20 | Anchorage, Alaska, United States | Hickok, Bruce D. | No injuries | - |
| 22 May 1991 | David K Maxwell MAX-1 | Sutton, Alaska, United States | Stanley R. Dapkus | Serious injuries | - |
| 5 Jan 1991 | Cessna 172G | Wasilla, Alaska, United States | Larry M. Driskill | No injuries | - |
| 2 Feb 1991 | Champion 7EC | Eagle River, Alaska, United States | Robert C. Bischoff | No injuries | - |
| 29 Mar 1991 | Cessna 206 | Homer, Alaska, United States | - | Fatal | 4 |
| 9 Apr 1991 | Piper PA-18-150 | Tatitlek, Alaska, United States | - | Fatal | 1 |