# NTSB MIA87IA078: British BAC 1-11 201, N101EX, Orlando, FL, January 28, 1987

- Type: NTSB incident investigation
- Classification: Incident · No injuries · Incident investigation · Final report
- Date: January 28, 1987, 09:30 local (14:30 UTC)
- Place: Orlando, FL
- Location: 28.4294° N, 81.3090° W: Placed by OpenAirDocs at ORLANDO INTL (MCO), within about a mile (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=28.4294&lon=-81.3090&mi=10
- Phase of flight: [Taxi](https://openairdocs.org/ntsb-phases/250) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 38 uninjured
- Status: Completed, report July 10, 1989
- Report: Approved by Office Director
- NTSB case key (mKey): 31790
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=MIA87IA078
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/31790/pdf
- Page: https://openairdocs.org/ntsb/MIA87IA078

## Sequence of events

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

- Airframe/component/system failure/malfunction, taxi - from landing
  - electrical system,electric relay - failure,total (cause)
  - air cond/heating/pressurization - overtemperature (contributing factor)
  - air cond/heating/pressurization - smoke (contributing factor)
- Miscellaneous/other, taxi - from landing
  - misc eqpt/furnishings,slides - disconnected (contributing factor)

## Analysis

AFTER LANDING THE AUXILIARY POWER UNIT WAS STARTED AND THE NUMBER ONE ENGINE WAS SHUTDOWN. THE AIRCRAFT THEN BEGAN TO PRESSURIZE AND FILL WITH SMOKE. AN EMERGENCY EVACUATION WAS ORDERED BY THE CAPTAIN THROUGH L-1 AND R-1 DOORS. THE SLIDE AT R-1 DID NOT WORK AND ALL CREW AND PASSENGERS EXITED THROUGH L-1. POST INCIDENT EXAMINATION REVEALED THE NUMBER ONE GENERATOR TRIP RELAY FAILED NOT ALLOWING APU ELECTRICAL POWER TO FEED THE NUMBER ONE BUSS. THIS BUSS SUPPLIES POWER TO THE PRESSURIZATION OUTFLOW VALVE AND COOLING FANS FOR THE AIR CONDITIONING PACKS. THE AIR CONDITIONING PACKS OVERHEATED CAUSING SMOKE TO BE EMITTED THROUGH THE AIR CONDITIONING DUCTS. THE R-1 DOOR SLIDE WAS FOUND TO NOT HAVE THE MANUAL OR AUTOMATIC ACTIVATION CONTROLS CONNECTED.

## Aircraft

- Registration: [N101EX](https://openairdocs.org/deregistered/N101EX-1988-07-20), registration cancelled 1988-07-20, S/N 007 (OpenAirDocs)
- Reported make and model: British Aircraft Corp. (BAC) BAC 1-11 201 (BAC 1-11 2)
- Registry model: [British BAC 1-11 201/Z/AC](https://openairdocs.org/model/british-bac-1-11-201-z-ac) (registry code 1480204) (OpenAirDocs)
- Category: Airplane
- Serial number: 007
- Airframe hours: 40642
- Engines: Rolls-Royce SPEY 506-14A 10400 lbs thrust turbo fan
- Damage: Minor damage
- Flight: Part 121
- Operator: Florida Express,Inc.
- Registered owner: Florida Express Inc
- Airworthiness certificate: Standard, Transport
- Last inspection: AAIP, January 25, 1987, 16 hours before
- Departed: CMH, COLUMBUS, OH
- Flight plan: IFR
- Airport: MCO, Orlando International, runway 18, 12,004 × 200 ft, asphalt

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 32; airline transport; airplane ratings: multi-engine land; instrument ratings: airplane; medical: unknown, valid medical--no waivers/lim.; seat: left; flight hours: 6,100 total, 1,150 in this make and model, 4 in the last 24 hours

## Weather

- Conditions: Visual (VMC), Day
- Wind: 220° at 5 knots
- Visibility: 10 statute miles
- Lowest ceiling: 5,500 ft overcast
- Temperature: 48 °F, dew point 45 °F
- Altimeter: 30.00 inHg
- Observed at: MCO

## 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 19870128009809I](https://openairdocs.org/incident/19870128009809I), Jan 28, 1987: Bac 111201ZAC, Orlando, FL. Cabin filled with smoke after landing. Aircraft evacuated. One slide malfunctioned. Generator trip relay failed.

## Other investigations on N101EX (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 CHI85IA359](https://openairdocs.org/ntsb/CHI85IA359), Aug 29, 1985: British Aerospace BAC 1-11-201AC (N101EX), Green Bay, WI, incident, no damage

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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