# NTSB FTW85IA341: Mcdonnell Douglas DC-10-10, N112AA, Abilene, TX, September 3, 1985

- Type: NTSB incident investigation
- Classification: Incident · Minor injuries · Incident investigation · Final report
- Date: September 3, 1985, 11:57 local (16:57 UTC)
- Place: Abilene, TX
- Coordinates: 32.430324, -99.829704 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=32.4303&lon=-99.8297&mi=10
- Phase of flight: [Enroute](https://openairdocs.org/ntsb-phases/400) (OpenAirDocs' grouping)
- Highest injury: Minor injuries
- Injuries: 1 minor, 188 uninjured
- Status: Completed
- Report: Approved by Office Director
- NTSB case key (mKey): 21593
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=FTW85IA341
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/21593/pdf
- Page: https://openairdocs.org/ntsb/FTW85IA341

## Sequence of events

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

- Miscellaneous/other, cruise - normal
  - fire warning system,powerplant - false indication (cause)
  - fire extinguishing equipment - initiated, pilot in command (contributing factor)
  - fire warning system,powerplant - overtemperature (cause)
  - precautionary landing - performed, pilot in command (contributing factor)
  - fire warning system,powerplant - separation (cause)
  - maintenance - inadequate, company maintenance personnel (contributing factor)
  - bleed air system - fatigue (cause)
- Miscellaneous/other, standing - engine(s) not operating
  - misc eqpt/furnishings,slides - improper (contributing factor)

## Analysis

AA DC-10 ENROUTE EL PASO, TX. TO DFW ARPRT TX. HAD FIRE WARNING #3 ENG. CREW PERFORMED EMERG. PROC. BUT LITE REMAINED ON. CREW MADE EMERGENCY LANDING DYESS AFB ABILENE, TX. PAX EMER EVAC LEFT SIDE OF A/C. AFT SLIDE L4 DEFLATED DURING EVAC 1 PAX RECEIVED MINOR INJ. 20 PAX WERE TREATED FOR VARIOUS ABRASIONS AND BRUISES AND RELEASED. FIRE WARNING CAUSED BY SEPARATED BLEED AIR DUCT. DUE TO FATIGUE WHICH MELTED FIRE WARNING CIRCUIT. REASON FOR SLIDE DEFLATION NOT POSITIVELY DETERMINED.

## Aircraft

- Registration: [N112AA](https://openairdocs.org/deregistered/N112AA-2002-06-10), registration cancelled 2002-06-10, S/N 46512, built 1972 (OpenAirDocs)
- Reported make and model: MCDONNELL DOUGLAS DC-10-10
- Registry model: [Mcdonnell Douglas DC-10-10](https://openairdocs.org/model/mcdonnell-douglas-dc-10-10) (registry code 3022110) (OpenAirDocs)
- Registry engine: [GE CF6-6 series](https://openairdocs.org/engine/ge-cf6-6-series) (registry code 30020, turbo-fan) (OpenAirDocs)
- Category: Airplane
- Serial number: 46512
- Airframe hours: 37565
- Engines: GE CF6-50A 71414 horsepower turbo fan
- Damage: Minor damage
- Flight: Part 121
- Registered owner: American Airlines
- Airworthiness certificate: Standard, Transport
- Departed: ELP, EL PASO, TX
- Destination: DFW, DFW ARPT, TX
- Flight plan: IFR
- Airport: DYS, Dyess Air Force Base, runway 16, 13,500 × 300 ft, concrete

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 47; airline transport; airplane ratings: multi-engine land; instrument ratings: airplane; medical: class 1, valid medical--no waivers/lim.; seat: left; flight hours: 16,000 total, 5,000 in this make and model, 225 in the last 90 days

## Weather

- Conditions: Visual (VMC), Day
- Visibility: 30 statute miles
- Lowest ceiling: none
- Temperature: 102 °F
- Observed at: ABI

## FAA reports on this event (1)

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

- [Incident 19850903050929I](https://openairdocs.org/incident/19850903050929I), Sep 3, 1985: Doug DC1010, Abilene, TX. Fire warning NR3 engine. Injuries when escape slide did not inflate fully. Bleed air duct failed, false fire light.

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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