- Date
- January 13, 1987, 13:54 local (18:54 UTC)
- Place
- Remmington, IN
- Injuries
- 3 uninjured
- Damage
- Minor damage
- Phase of flight
- Maneuvering
- Aircraft
- N906TCNihon YS-11A-500
- Weather
- Visual (VMC) · Day
- Status
- Completed · report July 10, 1989
- Report
- Approved by Office Director
- FAA report
- 19870113009789I
- Case key
- 13662
From the NTSB’s public API. By law, NTSB reports can’t be used as evidence in lawsuits over the incident.
On this page
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 flight crew failed to adhere to appropriate procedures and directives when they failed to select the HP cock levers to the hswl (lock out) position while performing an approach to landing stall during a training/test flight. When stall recovery was initiated, both propellers 'hung up' when the high (cruise pitch) stops of each propeller failed to withdraw. As the power levers were advanced, turbine gas temperatures (tgt's) exceeded limitations; the left propeller auto-feathered, the right propeller was later feathered by the captain. Restart procedures were attempted without success, and a forced landing in a plowed cornfield ensued. Examination of the engines revealed that the turbines had been 'subjected to severe (and destructive) thermal degradation during operation' as a result of the propellers being constrained during low speed operations. Testing of the relays revealed that the high stop withdrawal relay for the right propeller functioned intermittently.
Aircraft
- Registration
- N906TC
- Reported as
- Nihon YS-11A-500
- Category
- Airplane
- Serial number
- 2154
- Engine
- Rolls-Royce MK542-105, 2,050 horsepower, turbo prop
- Damage
- Minor damage
- Flight
- Instructional · Part 91
- Registered owner
- Mid Pacific Airlines
- Airworthiness certificate
- Standard, Normal; Standard, Transport
- Last inspection
- Continuous airworthiness · January 13, 1987
- Departed
- IND · Indianapolis, IN
- Destination
- LAF · Lafayette, IN
- Flight plan
- IFR
Flight crew
As NTSB recorded them. NTSB leaves out names.
- Role
- Pilot
- Age
- 34
- Certificates
- Flight instructor, Airline transport, Commercial
- Airplane ratings
- Multi-engine land, Single-engine land, Single-engine sea
- Instrument ratings
- Airplane
- Medical
- Class 1, Valid Medical--no waivers/lim.
- Seat
- Left
- Flight hours
- 3,913 total · 1,381 in this make and model · 3,400 as pilot in command · 56 in the last 90 days · 3 in the last 24 hours
Weather
- Conditions
- Visual (VMC) · Day
- Wind
- 190° at 6 knots
- Visibility
- 7 statute miles
- Lowest ceiling
- None
- Temperature
- 41 °F, dew point 30 °F
- Altimeter
- 29.00 inHg
- Observed at
- LAF, 24 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.