DEN89FA070

NTSB accident investigation · Swearingen SA-227-AC · Salt Lake City, UT · January 30, 1989

Accident · No injuriesField investigationFinal report
Date
January 30, 1989, 15:25 local (22:25 UTC)
Place
Salt Lake City, UT
Injuries
16 uninjured
Phase of flight
Taxi
Aircraft
N169SWSwearingen SA-227-ACN2685LFairchild SA-227-AC
Weather
Instrument (IMC) · Day
Status
Completed · report May 22, 1990
Report
Approved by Office Director
Case key
17578

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

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Probable cause

The failure of captain of N169SW to maintain a visual lookout while taxiing his aircraft allowing his aircraf to creep into the stationary aircraft in front of him.

The failure of the captain to maintain a visual lookout while taxiing his aircraft, inadvertently allowing his aircraft to creep into the stationary aircraft in front of him.

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.

On ground/water collision with objectTaxi - to takeoff
Visual lookout - not maintainedPilot in commandCause
ComplacencyPilot in commandFactor
Object - aircraft parked/standing
On ground/water collision with objectStanding - engine(s) operating
Visual lookout - not maintainedPilot of other aircraftCause
ComplacencyPilot of other aircraftCause
Object - aircraft moving on ground

Analysis

While waiting in line for the aircraft in front to move toward the takeoff area, the aircraft was run into by a company aircraft behind it. The captain of the other aircraft stated that without realizing it, his aircraft began to creep up on the preceding aircraft until the right engine propeller struck the tail of the preceding aircraft causing substantial damage to both aircraft.

The captain stated that he was cleared by ATC ground control to proceed in a taxi line of 10 aircraft that were waiting for takeoff. Progress was slow as the aircraft moved and then stopped and moved again. After about 20-30 minutes of taxiing, the two subject aircraft came to a stop again. The captain said that without realizing it, his aircraft began to creep up on the preceding aircraft until the right engine propeller struck the tail of the proceding aircraft causing substantial damage to both aircraft. The captain stated that he was at the controls at the time of the collision and could not recall what was occupying his attention prior to the collision. Post accident examination failed to reveal any malfunction of the brake system.

Aircraft · 2

Registration
N169SW
Reported as
Swearingen SA-227-AC
Category
Airplane
Serial number
AC-558
Airframe hours
12,201
Engine
Garrett TPE 331-11UA, 1,000 horsepower, turbo prop
Damage
Substantial damage
Flight
Part 135
Registered owner
James D. Gazonas
Airworthiness certificate
Standard, Utility
Last inspection
Continuous airworthiness · January 12, 1989 · 19 hours before
Destination
RKS · Rock Springs, WY
Flight plan
IFR
Airport
SLC · Salt Lake City Intl, runway 16, 12,003 × 150 ft, asphalt
Registration
N2685L
Reported as
Fairchild SA-227-AC
Category
Airplane
Serial number
AC-648
Engine
Garrett TPE331 11UA, 1,000 horsepower, turbo prop
Damage
Substantial damage
Flight
Part 135
Registered owner
Provident Bank Trustee
Airworthiness certificate
Standard, Utility
Destination
JAX · Jackson, WY
Flight plan
IFR
Airport
SLC · Salt Lake City Intl, runway 16, 12,003 × 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 · 2

As NTSB recorded them. NTSB leaves out names.

Role
Pilot, aircraft N169SW
Age
49
Certificates
Commercial, Airline transport
Airplane ratings
Single-engine land, Multi-engine land
Instrument ratings
Airplane
Medical
Class 1, Valid Medical--w/ waivers/lim
Seat
Left
Flight hours
13,512 total · 4,012 in this make and model · 11,545 as pilot in command · 246 in the last 90 days · 81 in the last 30 days · 6 in the last 24 hours
Role
Pilot, aircraft N2685L
Age
31
Certificates
Commercial, Airline transport
Airplane ratings
Single-engine land, Multi-engine land
Instrument ratings
Airplane
Medical
Class 1, Valid Medical--no waivers/lim.
Seat
Left
Flight hours
3,550 total

Weather

Conditions
Instrument (IMC) · Day
Wind
180° at 6 knots
Visibility
2 statute miles
Lowest ceiling
2,400 ft overcast
Temperature
34 °F, dew point 21 °F
Altimeter
30.00 inHg
Observed at
SLC, 1 nm away

FAA reports on this event · 2

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