# NTSB FTW86FPA17: Cessna 421, N8155Q, Alvord, TX, February 22, 1986

- Type: NTSB accident investigation
- Classification: Accident · Serious injuries · Final report
- Date: February 22, 1986, 14:40 local (20:40 UTC)
- Place: Alvord, TX
- Coordinates: 33.350444, -97.690513 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=33.3504&lon=-97.6905&mi=10
- Phase of flight: [Enroute](https://openairdocs.org/ntsb-phases/400) (OpenAirDocs' grouping)
- Highest injury: Serious injuries
- Injuries: 1 serious
- Status: Completed
- Report: Approved by Office Director
- NTSB case key (mKey): 21927
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=FTW86FPA17
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/21927/pdf
- Page: https://openairdocs.org/ntsb/FTW86FPA17

## Sequence of events

In NTSB's coding before 2008 (https://www.ntsb.gov/GILS/Documents/codman.pdf).

- Loss of engine power(total) - mech failure/malf, cruise - normal
  - fluid,oil - loss,total (cause)
  - lubricating system,oil hose - burst (cause)
  - fluid,oil - leak (cause)
  - induction air control,linkage - separation (cause)
- Forced landing, descent - emergency
- In flight collision with object, landing - flare/touchdown
  - object - tree(s) (contributing factor)
  - object - fence (contributing factor)

## Analysis

THE ACFT COLLIDED WITH TREE TOPS AND SHEARED THE LANDING GEAR DURING A FORCED LANDING OFF ARPT. THE LEFT ENG HAD BEEN FEATHERED DUE TO LOSS OF OIL FROM A RUPTURED OIL HOSE BETWEEN THE OIL PUMP & FILTER. THE RT ENG WAS NOT DEVELOPING FULL POWER BECAUSE OF AN AIR DUCT BEING SEPARATED FROM THE THROTTLE ASSEMBLY. A CLAMP HAD LOOSENED AND FELL OFF. THE ACFT WAS BEING FEERIED FOR MAINTENANCE. ITS LAST ANNUAL WAS ON 7/6/84. THERE IS NO RECORD OF A FERRY PERMIT BEING ISSUED FOR THIS FLT.

## Aircraft

- Registration: [N8155Q](https://openairdocs.org/deregistered/N8155Q-2013-05-13), registration cancelled 2013-05-13, S/N 421B0554, built 1973 (OpenAirDocs)
- Reported make and model: CESSNA 421
- Registry model: [Cessna 421B](https://openairdocs.org/model/cessna-421b) (registry code 2076014) (OpenAirDocs)
- Registry engine: [Continental GTSIO-520-C](https://openairdocs.org/engine/continental-gtsio-520-c) (registry code 17035, reciprocating) (OpenAirDocs)
- Category: Airplane
- Serial number: 421B-0554
- Airframe hours: 3019
- Engines: CONTINENTAL GTSIO-520-H 375 horsepower reciprocating
- Damage: Substantial damage
- Flight: Ferry, Part 91
- Operator: Jiffy Food Stores, Inc.
- Airworthiness certificate: Standard, Normal
- Last inspection: Annual, July 6, 1984, 359 hours before
- Departed: DAL, DALLAS, TX
- Destination: SPS, WICHITA FALLS, TX

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 44; 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: 10,917 total, 402 in this make and model, 10,557 as pilot in command, 321 in the last 90 days, 120 in the last 30 days, 5 in the last 24 hours

## Weather

- Conditions: Visual (VMC), Day
- Wind: 330° at 15 knots
- Visibility: 15 statute miles
- Lowest ceiling: none
- Temperature: 61 °F
- Altimeter: 30.00 inHg

## FAA reports on this event (1)

The FAA's own accident and incident reports, matched to the aircraft by N-number and date (OpenAirDocs).

- [Accident 19860222005139A](https://openairdocs.org/incident/19860222005139A), Feb 22, 1986: Cessna 421B, Alvord, TX, Substantial damage. Left engine quit. Oil hose ruptured. Partial power on right engine, air induction duct loose. Last annual on 070684

From the NTSB's public API. Aircraft are matched to registry aircraft by N-number and event date, checked against the reported serial number, make and model; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model.

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