# NTSB LAX87DJA05: Nihon YS-11A, N118MP, Honolulu, HI, April 10, 1987

- Type: NTSB accident investigation
- Classification: Accident · Serious injuries · Final report
- Date: April 10, 1987, 08:06 local (18:06 UTC)
- Place: Honolulu, HI
- Coordinates: 21.350749, -157.87944 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=21.3507&lon=-157.8794&mi=10
- Phase of flight: [Takeoff](https://openairdocs.org/ntsb-phases/300) (OpenAirDocs' grouping)
- Highest injury: Serious injuries
- Injuries: 1 serious, 3 minor, 39 uninjured
- Status: Completed, report March 10, 1988
- Report: Approved by Office Director
- NTSB case key (mKey): 25291
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=LAX87DJA05
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/25291/pdf
- Page: https://openairdocs.org/ntsb/LAX87DJA05

## 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
  - fire warning system,powerplant - chafed (cause)
  - fire warning system,powerplant - false indication (cause)
  - emergency procedure - initiated, pilot in command (contributing factor)
  - instructions,written/verbal - not followed, flight attendant (contributing factor)

## Analysis

DURING THE TAKEOFF GROUND RUN APPROACHING V1/VR, THE #1 ENGINE FIRE WARNING LIGHT ILLUMINATED AND THE FIRE BELL SOUNDED.THE TAKEOFF WAS ABORTED AND THE ACFT WAS TURNED OFF THE RWY ONTO A TAXIWAY. THE ENGINES WERE SHUTDOWN AND THE CAPTAIN ORDERED A RIGHT SIDE EVACUATION, HOWEVER, THE LEFT SIDE, NOT ORDERED, WAS ALSO UTILIZED. DURING THE EVACUATION ONE PASSENGER WAS SERIOUSLY INJURED. INSPECTION REVEALED THAT THE CHAFING ON THE FIRE SENSING ELEMENT OUTER TUBE AGAINST THE ENGINE THERMOCOUPLE FUNCTION BOX CREATED A CHANGE IN CAPACITANCE WITHIN THE ELEMENT SUFFICIENT ENOUGH TO ENERGIZE THE FIRE WARNING CIRCUITS.  THE WAS NO FIRE. ONE PASSENGER SUFFERED A FRACTURED ANKLE DURING THE EVACTUATION.

## Aircraft

- Registration: N118MP (not matched to a registry record)
- Reported make and model: NIHON YS-11A
- Category: Airplane
- Serial number: 2031
- Airframe hours: 40036
- Engines: ROLLS-ROYCE MK-542-10J 2966 horsepower turbo prop
- Damage: No damage
- Flight: Part 121
- Registered owner: Mid Pacific Airlines, Inc.
- Airworthiness certificate: Standard, Transport
- Last inspection: Continuous airworthiness, January 22, 1987, 327 hours before
- Departed: HNL, HI
- Destination: LIH, LIHUE, HI
- Flight plan: IFR
- Airport: HNL, Honolulu Int'L, runway 8L, 12,360 × 150 ft, asphalt

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 36; airline transport, flight instructor; airplane ratings: multi-engine land; instrument ratings: airplane; medical: class 1, valid medical--no waivers/lim.; seat: left; flight hours: 5,500 total, 3,000 in this make and model, 3,000 as pilot in command, 150 in the last 90 days, 80 in the last 30 days, 4 in the last 24 hours

## Weather

- Conditions: Visual (VMC), Day
- Wind: 70° at 10 knots
- Visibility: 25 statute miles
- Lowest ceiling: none
- Temperature: 79 °F, dew point 64 °F
- Altimeter: 30.00 inHg
- Observed at: HNL

## 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 19870410009209A](https://openairdocs.org/incident/19870410009209A), Apr 10, 1987: Nihon YS11, Honolulu, HI. Takeoff was aborted for an engine fire warning light. Passenger injured after failing to follow instructions.

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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