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Wallace Floor Covering Cessna 335 accident

5 Dec 1985 · Pendleton, OR, United States

Cessna 335 · Accident: partial loss of engine power (non-mechanical) during initial climb

From Eastern Oregon Regional Airport at Pendleton (PDT) to S22 · Hermiston, OR

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Event

NTSB case
SEA86FA028
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
Visual Meteorological Cond

Cessna 335

Aircraft type
Cessna 335
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
N2711U
Onboard fatalities
Unknown
Route
From Eastern Oregon Regional Airport at Pendleton (PDT), Pendleton, ORTo S22 · Hermiston, OR
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
Initial climb
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
Partial loss of engine power (non-mechanical)
DamageDestroyed: beyond practical repair. Substantial: damage that affects the structure, performance or handling and normally needs major repair. Minor: less than that. Glossary
Destroyed

Cause areas

  • Fuel system › Water
  • Fuel system, cap › Leak
  • Pilot in command › Emergency procedure, improper
  • Pilot in command › In-flight planning/decision, improper

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

NTSB narrative

AT 500 FT AGL ON DEPARTURE CLIMB, WITH LNDG GEAR UNRETRACTED, PLT FELT VIBRATIONS SIMILAR TO ROUGH-RUNNING ENGINE BUT NOTED NO INSTRUMENT INDICATIONS, THROTTLED BACK AND LEVELED OFF. WHILE TROUBLE-SHOOTING PROBLEM, PLT NOTED ACFT WAS DESCENDING AT 1200 FPM, ADDED PWR BUT VIBRATION INCREASED SO PLT REDUCED PWR, CONCENTRATED ON MAINTAINING 'BLUE-LINE' SPD (105 KNOTS), AND ALLOWED ADFT TO CONTRACT LEVEL SNOW-COVERED TERRAIN IN LEVEL ATTITUDE, GEAR DOWN, FLAPS UP, AT SPEED IN EXCESS OF 105 KNOTS. TEAR-DOWN OF ENGINES AND PROPS REVEALED NO PRE-IMPACT MECHANICAL FAILURE OR MALFUNCTION. BOTH FUEL SELECTORS WERE FOUND TO CONTAIN WATER. ACFT HAD HISTORY OF WATER IN FUEL SYSTEM. FUEL FILLER GAP INNER 'O' RINGS FOUND TO BE EXCESSIVELY WORN AND NO LONGER SEALING

Verbatim NTSB analysis from the NTSB dataset

Sources

NTSB record SEA86FA028
Event ID
20001214X38492
Case number
SEA86FA028
Dataset
historical-pre2008
Source SHA-256
89e2df6d848e7ab3b42e7d7c7a03ff403303057a26ca04c95b3ea67201c3ce74
Source notes (4)
  • 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: local date, investigation status. Values present in the bulk record are kept.
  • The date is the local date; the NTSB stores the UTC date 1985-12-06.
  • API snapshot SHA-256: db3b5a9573f976f4294cc3a3205c50a95b9799104844c4862007e23110350449; retrieved 2026-09-18T20:12:16.318Z.