DEN87FA042

NTSB accident investigation · Aero Commander 690A · Miles City, MT · January 7, 1987

Accident · Serious injuriesField investigationFinal report
Date
January 7, 1987, 13:59 local (20:59 UTC)
Place
Miles City, MT
Injuries
1 serious, 1 minor, 4 uninjured
Damage
Substantial damage
Phase of flight
Approach
Aircraft
N57133Aero Commander 690A
Weather
Instrument (IMC) · Day
Status
Completed · report May 2, 1988
Report
Approved by Office Director
FAA report
19870107000229A
Case key
17091

From the NTSB’s public API. By law, NTSB reports can’t be used as evidence in lawsuits over the accident.

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.

Abrupt maneuverApproach - faf/outer marker to threshold (ifr)
Weather condition - low ceiling
Autopilot - improper use ofPilot in commandCause
Weather condition - obscuration
Throttle/power control - reducedPilot in commandCause
Weather condition - fog
Loss of control - in flightApproach - faf/outer marker to threshold (ifr)
Stall/mush - inadvertentPilot in commandCause
In flight collision with terrain/waterDescent - uncontrolled
Terrain condition - runway

Analysis

The plt of the nonscheduled domestic pax air taxi flt was flying the vor/dme rwy 22 apch to wiley field, Miles City, MT. The plt said he turned on the autopilot and after turning inbound from the procedure turn towards the faf he engaged the apch mode. After crossing the faf the plt descended to mda and engaged the alt hold mode. When he reached the map the plt started to make a missed apch but a pax, seated next to him in the copilot's seat, reported the rwy in sight. The plt said he saw the rwy and retarded the throttles in order to descend for landing. The acft nose pitched up abruptly, the acft stalled, and mushed to the ground. The acft hit hard and skidded off the rwy.

Aircraft

Registration
N57133
Reported as
Aero Commander 690A
Category
Airplane
Serial number
11133
Airframe hours
6,216
Engine
Garrett TPE-331-5251K, 717 horsepower, turbo prop
Damage
Substantial damage
Flight
Part 135
Registered owner
Corporate Air
Airworthiness certificate
Standard, Normal
Last inspection
100 hour · November 21, 1986 · 78 hours before
Departed
BIL · Billings, MT
Destination
MLS · Miles City, MT
Flight plan
VFR
Airport
MLS · Wiley, runway 22, 5,783 × 100 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
36
Certificate
Commercial
Airplane ratings
Multi-engine land, Single-engine land
Instrument ratings
Airplane
Medical
Class 1, Valid Medical--no waivers/lim.
Seat
Left
Toxicology
Performed
Flight hours
2,398 total · 45 in this make and model · 2,198 as pilot in command · 186 in the last 90 days · 65 in the last 30 days

Weather

Conditions
Instrument (IMC) · Day
Wind
140° at 4 knots
Lowest ceiling
400 ft
Temperature
25 °F, dew point 21 °F
Altimeter
30.00 inHg
Observed at
MLS

FAA reports on this event · 1

The FAA’s own accident and incident reports, matched to the aircraft by N-number and date.