# NTSB FTW85FA308: Fairchild Swearingen SA226TC, N5356M, Dallas, TX, August 7, 1985

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Field investigation · Final report
- Date: August 7, 1985, 18:50 local (23:50 UTC)
- Place: Dallas, TX
- Coordinates: 32.829341, -96.850883 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=32.8293&lon=-96.8509&mi=10
- Phase of flight: [Approach](https://openairdocs.org/ntsb-phases/500) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 2 uninjured
- Status: Completed
- Report: Approved by Office Director
- NTSB case key (mKey): 21566
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=FTW85FA308
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/21566/pdf
- Page: https://openairdocs.org/ntsb/FTW85FA308

## Sequence of events

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

- Airframe/component/system failure/malfunction, approach - vfr pattern - final approach
  - electrical system,voltage regulator - failure,total (cause)
  - maintenance,service of aircraft/equipment - inadequate, company maintenance personnel
  - landing gear,normal retraction/extension assembly - inoperative (cause)
  - battery - inadvertent use, pilot in command
  - improper training(emergency procedure(s)), check pilot
- Gear collapsed, landing - roll
  - wheels up landing - inadvertent, pilot in command (cause)
  - anxiety/apprehension, pilot in command
  - checklist - improper use of, pilot in command (cause)

## Analysis

THE AIRCRAFT SUSTAINED SUBSTANTIAL DAMAGE WHEN IT LANDED WITH THE GEAR UP. THE PILOTS REPORTED LOWERING THE GEAR, BUT DID NOT CONFIRM THE GEAR POSITION. THE TOWER TRANSMITTED A WARNING, BUT THE CREW DID NOT RESPOND. SUBSEQUENT INVESTIGATION REVEALED A MALFUNCTION IN THE VOLTAGE REGULATORS ON BOTH GENERATORS. THE BATTERY VOLTAGE AVAILABLE WAS NOT SUFFICIENT TO INITIATE GEAR EXTENSION. MANUAL GEAR EXTENSION WAS AVAILABLE.

## Aircraft

- Registration: N5356M (not matched to a registry record)
- Reported make and model: Fairchild Swearingen SA226TC
- Category: Airplane
- Serial number: TC211E
- Airframe hours: 10280
- Engines: ALLISON TPE331-3UW303 940 horsepower turbo prop
- Damage: Substantial damage
- Flight: Part 135
- Registered owner: Air Midwest Inc.
- Airworthiness certificate: Standard, Normal
- Last inspection: AAIP, May 6, 1985, 51 hours before
- Departed: FYV, FAYETTEVILLE, AR
- Flight plan: IFR
- Airport: DAL, Love Field, runway 13L, 7,754 × 150 ft, asphalt

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 38; commercial, airline transport; airplane ratings: single-engine land, multi-engine land; instrument ratings: airplane; medical: class 1, valid medical--no waivers/lim.; seat: left

## Weather

- Conditions: Visual (VMC), Day
- Wind: calm
- Visibility: 15 statute miles
- Lowest ceiling: none
- Temperature: 97 °F, dew point 68 °F
- Altimeter: 29.00 inHg
- Observed at: DAL

## 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 19850807037049A](https://openairdocs.org/incident/19850807037049A), Aug 7, 1985: Swrngn SA226TC, Dallas, TX, Substantial damage. Pilot unable to check gear down before landing. Electrical power loss was due to faulty voltage regulators.

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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