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SkyWest Airlines Swearingen SA-227-AC accident

30 Jan 1989 · Salt Lake City, UT, United States

Swearingen SA-227-AC and Fairchild SA-227-AC · Accident: on ground/water collision with object while taxiing

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Event

NTSB case
DEN89FA070
Event typeAccident: someone killed or seriously injured, or the aircraft substantially damaged (NTSB definition). Incident: an occurrence that affected or could have affected safety, short of that. Glossary
Accident
InvestigationHow far the investigation had got when the record was published: preliminary, ongoing, final or completed. Unknown where the source does not say. Glossary
Completed
API-reported fatalities
0 · all aircraft and ground
Ground fatalities
0
OperationWhat kind of flying it was, grouped by the rules it flew under: airline (US Part 121), air taxi and commuter (Part 135), general aviation (Part 91 and similar), military or government. Glossary
Charter & commuter
WeatherVisual meteorological conditions (VMC): good enough to fly by looking outside. Instrument conditions (IMC): cloud or low visibility, flying by instruments. Glossary
Instrument Meteorological Cond

Aircraft 1 · Swearingen SA-227-AC

Aircraft type
Swearingen SA-227
Category
Airplane
RegistrationThe aircraft's tail number, such as N12345 or G-ABCD. Registrations are reissued, so the same one years apart can be a different aircraft. Glossary
N169SW
Onboard fatalities
Unknown
Route
From not recordedTo Southwest Wyoming Regional Airport (RKS), Rock Springs, WY
Aircraft age
Not recorded
Flight rulesThe regulations the flight operated under: in the US, Part 91 (general aviation), Part 121 (airlines), Part 135 (air taxi and commuter) and others; for flights abroad, the NTSB's coarser commercial or non-commercial code. Glossary
Part 135: Air Taxi & Commuter
Phase of flightThe stage of the flight when things started to go wrong: standing, taxi, takeoff, initial climb, en route, maneuvering, approach or landing. Glossary
Taxi · to runway
First occurrenceThe single coded event the NTSB judges best describes what happened (records from 2008 on). Older records name the first occurrence in the sequence instead. Glossary
On ground/water collision with object
DamageDestroyed: beyond practical repair. Substantial: damage that affects the structure, performance or handling and normally needs major repair. Minor: less than that. Glossary
Substantial

Aircraft 2 · Fairchild SA-227-AC

Aircraft type
Fairchild SA-227
Category
Airplane
RegistrationThe aircraft's tail number, such as N12345 or G-ABCD. Registrations are reissued, so the same one years apart can be a different aircraft. Glossary
N2685L
Onboard fatalities
Unknown
Route
From not recordedTo JAX · Jackson, WY
Aircraft age
Not recorded
Flight rulesThe regulations the flight operated under: in the US, Part 91 (general aviation), Part 121 (airlines), Part 135 (air taxi and commuter) and others; for flights abroad, the NTSB's coarser commercial or non-commercial code. Glossary
Part 135: Air Taxi & Commuter
Phase of flightThe stage of the flight when things started to go wrong: standing, taxi, takeoff, initial climb, en route, maneuvering, approach or landing. Glossary
Standing · engine(s) operating
First occurrenceThe single coded event the NTSB judges best describes what happened (records from 2008 on). Older records name the first occurrence in the sequence instead. Glossary
On ground/water collision with object
DamageDestroyed: beyond practical repair. Substantial: damage that affects the structure, performance or handling and normally needs major repair. Minor: less than that. Glossary
Substantial

Cause areas

  • Pilot in command › Visual lookout, not maintained
  • Pilot of other aircraft › Complacency
  • Pilot of other aircraft › Visual lookout, not maintained

Approximate · Coordinates as recorded by the NTSB; no uncertainty radius is established.

NTSB narrative

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.

Probable cause

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.

Verbatim NTSB analysis and probable cause from the NTSB dataset

Sources

NTSB record DEN89FA070
Event ID
20001213X27563
Case number
DEN89FA070
Dataset
historical-pre2008
Source SHA-256
89e2df6d848e7ab3b42e7d7c7a03ff403303057a26ca04c95b3ea67201c3ce74
Source notes (6)
  • Unreviewed is an editorial label, not an investigation status. API-sourced is not report-checked or human-reviewed. Explicit event totals are used without summing aircraft injury tables; onboard allocation is withheld. Unknown values remain unknown. The operation category is mapped from the NTSB-reported FAR part and has not been reviewed.
  • Filled from the NTSB case API where the bulk record had no value: investigation status. Values present in the bulk record are kept.
  • The date is the local date, which is the same as the UTC date the NTSB stores.
  • API snapshot SHA-256: 72c8c00e68366d01626feb38af2eb39d69c72c62dab2fb35274b9dcaaea8b535; retrieved 2026-09-18T19:14:21.252Z.
  • The NTSB's operator name is blank for N169SW; the operator shown is the name the NTSB records it doing business as.
  • The NTSB's operator name is blank for N2685L; the operator shown is the name the NTSB records it doing business as.