- Date
- March 27, 1991, 16:23 local (20:23 UTC)
- Place
- Anchorage, AK
- Injuries
- 4 uninjured
- Damage
- Minor damage
- Phase of flight
- Landing
- Aircraft
- N173RVNihon YS-11A-600
- Weather
- Visual (VMC) · Day
- Status
- Completed · report May 5, 1993
- Report
- Approved by Office Director
- NTSB office
- Alaska Regional Office
- FAA report
- 19910327013299I
- Case key
- 5497
From the NTSB’s public API. By law, NTSB reports can’t be used as evidence in lawsuits over the incident.
On this page
Probable cause
A jammed nose gear due to incorrect installation of the shear pin. Contributing to the accident was the insufficiently defined maintenance procedure.
Sequence of events
NTSB’s coding before 2008: each occurrence and phase of flight, and the causes and factors under it. The codes are defined in NTSB’s coding manual.
Analysis
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.
Aircraft
- Registration
- N173RV
- Reported as
- Nihon YS-11A-600
- Category
- Airplane
- Serial number
- 2173
- Airframe hours
- 19,730
- Engine
- Rolls-Royce 542-10K, 2,775 horsepower, turbo prop
- Damage
- Minor damage
- Flight
- Instructional · Part 91
- Operator
- Reeve Aleutian Airways, Inc.
- Registered owner
- Reeve Aleutian Airways, Inc.
- Airworthiness certificate
- Standard, Transport
- Last inspection
- Continuous airworthiness · January 27, 1991 · 126 hours before
- Flight plan
- IFR
- Airport
- ANC · Anchorage, runway 6, 10,600 × 150 ft, asphalt
Matched to the registry by N-number and the event date; the registry’s history has gaps, so older matches can be wrong. Compare the reported make and model.
Flight crew
As NTSB recorded them. NTSB leaves out names.
- Role
- Pilot
- Age
- 42
- Certificates
- Flight instructor, Airline transport, Commercial, Private
- Airplane ratings
- Single-engine land, Multi-engine land, Single-engine sea
- Instrument ratings
- Airplane
- Medical
- Class 1, Valid Medical--w/ waivers/lim
- Seat
- Left
- Flight hours
- 12,000 total · 4,694 in this make and model · 2,788 as pilot in command · 125 in the last 90 days · 39 in the last 30 days · 3 in the last 24 hours
Weather
- Conditions
- Visual (VMC) · Day
- Wind
- 60° at 7 knots
- Visibility
- 1 statute miles
- Lowest ceiling
- 4,000 ft overcast
- Temperature
- 37 °F, dew point 30 °F
- Altimeter
- 29.00 inHg
- Observed at
- ANC, 1 nm away
FAA reports on this event · 1
The FAA’s own accident and incident reports, matched to the aircraft by N-number and date.
Other investigations on N173RV · 1
Matched to the same aircraft by N-number and date.