# NTSB FTW90DPA04: Boeing A75N1, N27933, Longview, TX, June 4, 1990

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Final report
- Date: June 4, 1990, 14:03 local (19:03 UTC)
- Place: Longview, TX
- Coordinates: 32.400241, -94.709754 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=32.4002&lon=-94.7098&mi=10
- Phase of flight: [Landing](https://openairdocs.org/ntsb-phases/550) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 2 uninjured
- Status: Completed, report November 9, 1992
- Report: Approved by Office Director
- NTSB case key (mKey): 22930
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=FTW90DPA04
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/22930/pdf
- Page: https://openairdocs.org/ntsb/FTW90DPA04

## Probable cause

THE PILOT'S ABRUPT USE OF THE WHEEL BRAKES DURING THE LANDING ROLL.

## Sequence of events

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

- Nose over, landing - roll
  - brakes(normal) - improper use of, pilot in command (cause)

## Analysis

DURING THE LANDING ROLL AT 15 TO 20 MILES PER HOUR THE AIRPLANE BEGAN TO DRIFT TO THE RIGHT. THE RUDDER ALONE WAS NOT ADEQUATE AND THE PILOT ATTEMPTED TO COMPENSATE WITH BRAKES. THE AIRPLANE NOSED OVER INVERTED. BOTH PILOTS FELT THAT ONE OF THE BRAKES HAD LOCKED; HOWEVER, AN A&P MECHANIC EXAMINED AND TESTED THE SYSTEM FINDING NO DISCREPANCIES.

## Aircraft

- Registration: [N27933](https://openairdocs.org/aircraft/N27933), registered now, S/N 75-630, built 1941 (OpenAirDocs)
- Reported make and model: BOEING A75N1
- Registry model: [Boeing 75](https://openairdocs.org/model/boeing-75) (registry code 1380104) (OpenAirDocs)
- Registry engine: [Continental R670-SERIES series](https://openairdocs.org/engine/continental-r670-series-series) (registry code 17016, reciprocating) (OpenAirDocs)
- Category: Airplane
- Serial number: 75-630
- Airframe hours: 1278
- Engines: CONTINENTAL R-670-6A 220 horsepower reciprocating
- Damage: Substantial damage
- Flight: Personal, Part 91
- Registered owner: Confederate Air Force
- Airworthiness certificate: Standard, Normal
- Last inspection: Annual, April 17, 1990, 11 hours before
- Departed: GGG
- Airport: GGG, Gregg County, runway 35, 6,109 × 150 ft, asphalt

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 47; private; airplane ratings: single-engine land; medical: class 3, valid medical--w/ waivers/lim; seat: rear; flight hours: 1,303 total, 3 in this make and model, 1,183 as pilot in command, 71 in the last 90 days, 24 in the last 30 days, 1 in the last 24 hours

## Weather

- Conditions: Visual (VMC), Day
- Wind: 80° at 7 knots
- Visibility: 35 statute miles
- Lowest ceiling: 20,000 ft broken
- Temperature: 84 °F, dew point 66 °F
- Altimeter: 30.00 inHg
- Observed at: GGG

## 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 19900604018379A](https://openairdocs.org/incident/19900604018379A), Jun 4, 1990: Boeing A75N1, Longview, TX, Substantial damage. Tried to correct a wind-caused swerve but locked up brakes. Aircraft flipped onto its back.

## Other investigations on N27933 (1)

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.

- [NTSB DFW07CA003](https://openairdocs.org/ntsb/DFW07CA003), Oct 5, 2006: Boeing 75 (N27933), Sweetwater, TX, substantial damage. Probable cause: The pilot's failure to maintain directional control while landing.

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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