# NTSB MIA80IA108: Beech B99, N99TH, Orlando, FL, September 23, 1980

- Type: NTSB incident investigation
- Classification: Incident · No injuries · Closed
- Date: September 23, 1980
- Place: Orlando, FL · ORLANDO, FL
- Location: 28.5383° N, 81.3792° W: Placed by OpenAirDocs: center of Orlando, FL, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=28.5383&lon=-81.3792&mi=10
- Phase of flight: [Enroute](https://openairdocs.org/ntsb-phases/400) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 4 uninjured
- Status: Completed, report October 31, 1980
- Report: Brief approved by the director
- NTSB case key (mKey): 129037
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=MIA80IA108
- Page: https://openairdocs.org/ntsb/MIA80IA108

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
5-0028  80/9/23    ORLANDO,FL          BEECH B99           CR-  0  0  2  COMMERCIAL                AIRLINE TRANSPORT, AGE
        TIME - 2015                    N99TH               PX-  0  0  2  COMMUTER AIR CARRIER      47, 29 TOTAL HOURS, 1492
                                       DAMAGE-MINOR        OT-  0  0  0  AIR TAXI-PASSG S-D        IN TYPE, INSTRUMENT
                                                                                                   RATED.
        CLASSIFIED AS INCIDENT
        DEPARTURE POINT             INTENDED DESTINATION
          ORLANDO,FL                  OCALA,FL
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           FIRE OR EXPLOSION: IN FLIGHT                             IN FLIGHT: NORMAL CRUISE
        PROBABLE CAUSE(S)
           SYSTEMS - AIR CONDITION,HEATING AND PRESSURIZATION: TURBO-COMPRESSOR
           MISCELLANEOUS ACTS,CONDITIONS - MATERIAL FAILURE
        REMARKS- FIRE ORIGINATED IN AIR CONDITIONING SYSTEM INSTALLED ON RT ENG.
```

## Aircraft

- Registration: [N99TH](https://openairdocs.org/deregistered/N99TH-2011-06-15), registration cancelled 2011-06-15, S/N U-155, built 1974 (OpenAirDocs)
- Reported make and model: BEECH B99
- Registry model: [Beech B-99](https://openairdocs.org/model/beech-b-99) (registry code 1154004) (OpenAirDocs)
- Registry engine: [U/A Canada PT6A-27-28](https://openairdocs.org/engine/u-a-canada-pt6a-27-28) (registry code 61504, turbo-prop) (OpenAirDocs)
- Category: Airplane
- Engines: turbo prop
- Damage: Minor damage

## 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 19800923081259I](https://openairdocs.org/incident/19800923081259I), Sep 23, 1980: Beech 99, Orlando, FL, Minor damage. Fire warning with visual inspection required engine shutdown and precautionary landing. Fire was out

## Other investigations on N99TH (2)

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 CHI07LA050](https://openairdocs.org/ntsb/CHI07LA050), Dec 29, 2006: Beech B-99 (N99TH), Rapid City, SD, substantial damage. Probable cause: The pilot's failure to follow the published instrument approach procedure which contributed to his failure to maintain altitude and clearance from terrain during the instrument approach. A factor was…
- [NTSB SEA00LA183](https://openairdocs.org/ntsb/SEA00LA183), Sep 22, 2000: Beech B99 (N99TH), Missoula, MT, substantial damage. Probable cause: A loss of directional control due to a brake locked as a result of snow and ice contamination.

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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