# NTSB DCA92MA044: Lockheed L-1011-385-1, N11002, Jamaica, NY, July 30, 1992

- Type: NTSB accident investigation
- Classification: Accident · Serious injuries · Class 1 · Major · Final report
- Date: July 30, 1992, 17:41 local (21:41 UTC)
- Place: Jamaica, NY
- Coordinates: 40.650806, -73.789375 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=40.6508&lon=-73.7894&mi=10
- Phase of flight: [Initial climb](https://openairdocs.org/ntsb-phases/350) (OpenAirDocs' grouping)
- Highest injury: Serious injuries
- Injuries: 1 serious, 9 minor, 282 uninjured
- Status: Completed, report December 9, 1993
- Report: Approved by Office Director
- Investigation class: Class 1
- NTSB office: Major Investigations Division
- Safety recommendations: Yes
- NTSB case key (mKey): 10968
- NTSB case page: https://www.ntsb.gov/investigations/Pages/DCA92MA044.aspx
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/10968/pdf
- Board report AAR9304 (PDF): https://www.ntsb.gov/investigations/AccidentReports/Reports/AAR9304.pdf
- Page: https://openairdocs.org/ntsb/DCA92MA044

## Probable cause

DESIGN DEFICIENCIES IN THE STALL WARNING SYSTEM THAT PERMITTED A DEFECT TO GO UNDETECTED, THE FAILURE OF TWA'S MAINTENANCE PROGRAM TO CORRECT A REPETITIVE MALFUNCTION OF THE STALL WARNING SYSTEM, AND INADEQUATE CREW COORDINATION BETWEEN THE CAPTAIN AND FIRST OFFICER THAT RESULTED IN THEIR INAPPROPRIATE RESPONSE TO A FALSE STALL WARNING. (NTSB REPORT AAR-93/04)

## Sequence of events

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

- Airframe/component/system failure/malfunction, takeoff - initial climb
  - stall warning system - failure,partial (cause)
  - maintenance,aaip/progressive program - inadequate, company/operator management (cause)
  - acft/equip,inadequate design, manufacturer (cause)
- On ground/water encounter with terrain/water, takeoff - aborted
  - stall warning system - false indication
  - crew/group coordination - inadequate, pilot in command (cause)
  - crew/group coordination - inadequate, copilot/second pilot (cause)
  - ground loop/swerve - intentional, pilot in command
- Nose gear collapsed, takeoff - aborted
  - landing gear,nose gear - overload

## Analysis

IMMEDIATELY AFTER LIFTOFF THE STICK SHAKER ACTIVATED, AND THE FIRST OFFICER, WHO WAS MAKING THE TAKEOFF, SAID 'YOU GOT IT.' THE CAPTAIN TOOK CONTROL, CLOSED THE THRUST LEVERS, AND LANDED. HE APPLIED FULL REVERSE THRUST AND MAXIMUM BRAKING, AND TURNED THE AIRPLANE OFF THE RUNWAY TO AVOID A BARRIER AT THE END. A SYSTEM DESIGN DEFICIENCY PERMITTED A MALFUNCTIONING AOA SENSOR TO CAUSE A FALSE STALL WARNING. THE SENSOR HAD EXPERIENCED 9 PREVIOUS MALFUNCTIONS, AND WAS INSPECTED AND RETURNED TO SERVICE WITHOUT A DETERMINATION ON THE REASON FOR THE INTERMITTENT MALFUNCTION. THE FIRST OFFICER HAD INCORRECTLY PERCEIVED THAT THE AIRPLANE WAS STALLING AND GAVE CONTROL TO THE CAPTAIN WITHOUT PROPER COORDINATION OF THE TRANSFER OF CONTROL.

## Factual narrative

PLEASE SEE NTSB BLUE COVER REPORT PB93-910404, AAR-93/04.

## Aircraft

- Registration: [N11002](https://openairdocs.org/deregistered/N11002-1992-09-21), registration cancelled 1992-09-21, S/N 193B1014 (OpenAirDocs)
- Reported make and model: LOCKHEED L-1011-385-1 (L-1011-385)
- Registry model: [Lockheed L-1011-385-1](https://openairdocs.org/model/lockheed-l-1011-385-1) (registry code 5265010) (OpenAirDocs)
- Category: Airplane
- Serial number: 193B1014
- Airframe hours: 49662
- Engines: Rolls-Royce RB211-22B-02 turbo fan
- Damage: Destroyed
- Fire: On-Ground
- Flight: Part 121
- Operator: Trans World Airlines
- Registered owner: Interface Group-Nevada Inc.
- Airworthiness certificate: Standard, Transport
- Departed: JFK
- Destination: SFO, SAN FRANCISCO, CA
- Flight plan: IFR
- Airport: JFK, Jfk Intl Airport, runway 13R, 14,572 × 150 ft, concrete

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 54; commercial, airline transport; airplane ratings: multi-engine land, single-engine land; instrument ratings: airplane; medical: class 1, valid medical--w/ waivers/lim; seat: left; flight hours: 20,149 total, 2,397 in this make and model

## Weather

- Conditions: Visual (VMC), Day
- Wind: 150° at 10 knots
- Visibility: 11 statute miles
- Lowest ceiling: none
- Temperature: 75 °F, dew point 63 °F
- Altimeter: 30.00 inHg
- Observed at: JFK

## 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 19920730028219A](https://openairdocs.org/incident/19920730028219A), Jul 30, 1992: Lkheed 10113851, New York, NY, Destroyed. Stick shaker on rotation. Delayed decision to abort/go. Aborted late. Burned on landing impact. Stallwarning defect

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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