# NTSB SEA82IA101: Douglas DC-9-31, N919RW, Boise, ID, July 5, 1982

- Type: NTSB incident investigation
- Classification: Incident · No injuries · Incident investigation · Final report
- Date: July 5, 1982, 13:34 local (19:34 UTC)
- Place: Boise, ID
- Coordinates: 43.559326, -116.210525 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=43.5593&lon=-116.2105&mi=10
- Phase of flight: [Takeoff](https://openairdocs.org/ntsb-phases/300) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 84 uninjured
- Status: Completed, report July 5, 1983
- Report: Approved by Office Director
- NTSB case key (mKey): 69997
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=SEA82IA101
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/69997/pdf
- Page: https://openairdocs.org/ntsb/SEA82IA101

## Sequence of events

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

- Airframe/component/system failure/malfunction, takeoff - roll/run
  - flt control syst,wing flap control - corroded (cause)
  - warning system(other) - deployed inadvertently (cause)

## Analysis

AFTER A GATE DELAY TO LOAD LATE PASSENGERS, THE FLIGHT WAS CLEARED FOR TAKEOFF ON RUNWAY 28L. ABOUT 4 SECONDS AFTER ROTATION SPEED WAS CALLED, THE STICKSHAKER ACTIVATED AND THE TAKEOFF WAS ABORTED. A READOUT OF THE CVR INDICATED THAT THE THRUST REVERSERS WERE DEPLOYED 11 SECONDS LATER. THE AIRCRAFT WAS BROUGHT TO A STOP IN THE DIRT OVERRUN ABOUT 50' PAST THE END OF THE RUNWAY. ONLY MINOR DAMAGE WAS SUSTAINED BY THE AIRCRAFT AND THERE WERE NO INJURIES. THE AIRCRAFT HAD BEEN PLACARDED FOR AN INOPERATIVE ANTI-SKID SYSTEM PRIOR TO ITS DEPARTURE FROM SEATTLE, WA. INVESTIGATION REVEALED THAT THE RIGHT FLAP POSITION TRANSMITTER HAD MALFUNCTIONED DUE TO CORROSION. A MALFUNCTION OF EITHER FLAP POSITION TRANSMITTER CAN SEND AN ERRONEOUS FLAP SETTING SIGNAL TO THE STALL WARNING COMPUTER WHICH, IN TURN, WILL ACTIVATE THE STICKSHAKER/STALL WARNING SYSTEM AT INCORRECT AIRSPEEDS.

## Aircraft

- Registration: [N919RW](https://openairdocs.org/deregistered/N919RW-2013-02-06), registration cancelled 2013-02-06, S/N 47162, built 1968 (OpenAirDocs)
- Reported make and model: DOUGLAS DC-9-31
- Registry model: [Douglas DC-9-31](https://openairdocs.org/model/douglas-dc-9-31) (registry code 3022065) (OpenAirDocs)
- Registry engine: [Pratt & Whitney JT8D-1](https://openairdocs.org/engine/pratt-whitney-jt8d-1) (registry code 52044, turbo-jet) (OpenAirDocs)
- Category: Airplane
- Serial number: 47162
- Airframe hours: 40663
- Engines: P & W JT8D-9 14500 lbs thrust turbo fan
- Damage: Minor damage
- Flight: Part 121
- Operator: Republic Airlines West, Inc.
- Registered owner: Republic Airlines West, Inc.
- Departed: BOI, BOISE, ID
- Destination: DEN, DENVER, CO
- Flight plan: IFR
- Airport: BOI, Boise Air Terminal, runway 28L, 9,763 × 190 ft, asphalt

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 51; airline transport, commercial; airplane ratings: multi-engine land, single-engine land; instrument ratings: airplane; medical: class 1, valid medical--w/ waivers/lim; flight hours: 16,700 total, 6,500 in this make and model, 1 in the last 24 hours

## Weather

- Conditions: Visual (VMC), Day
- Wind: 340° at 9 knots
- Visibility: 70 statute miles
- Temperature: 153 °F
- Altimeter: 30.00 inHg
- Observed at: BOI

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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