# NTSB NYC72IN125: Beech 99A, N788C, Philadelphia, PA, April 9, 1972

- Type: NTSB incident investigation
- Classification: Incident · No injuries · Closed
- Date: April 9, 1972
- Place: Philadelphia, PA · PHILADELPHIA, PA
- Location: 39.9523° N, 75.1638° W: Placed by OpenAirDocs: center of Philadelphia, PA, within about 7 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=39.9523&lon=-75.1638&mi=10
- Phase of flight: [Landing](https://openairdocs.org/ntsb-phases/550) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 9 uninjured
- Status: Completed, report January 3, 1973
- Report: Brief approved by the director
- NTSB case key (mKey): 166782
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=NYC72IN125
- Page: https://openairdocs.org/ntsb/NYC72IN125

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
5-0009   72/4/9    PHILADELPHIA,PA     BEECH 99A           CR-  0  0  2  COMMERCIAL                CERTIFICATE UNKNOWN, AGE
        TIME - 1800                    N788C               PX-  0  0  7  COMMUTER AIR CARRIER      UNK/NR, UNK/NR TOTAL
                                       DAMAGE-MINOR        OT-  0  0  0  AIR TAXI-PASSG S-D        HOURS, UNK/NR IN TYPE,
                                                                                                   UNK/NR INSTRUMENT RATED.
        CLASSIFIED AS INCIDENT
        NAME OF AIRPORT - PHILADELPHIA INTL
        DEPARTURE POINT             INTENDED DESTINATION         LAST ENROUTE STOP
          PHILADELPHIA,PA             RETURN                       ALLENTOWN,PA
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           WHEELS-UP                                                LANDING: LEVEL OFF/TOUCHDOWN
        PROBABLE CAUSE(S)
           AIRFRAME - LANDING GEAR: NORMAL RETRACTION/EXTENSION ASSEMBLY
           AIRFRAME - LANDING GEAR: EMERGENCY/EXTENSION ASSEMBLY
           MISCELLANEOUS ACTS,CONDITIONS - JAMMED
           MISCELLANEOUS ACTS,CONDITIONS - MATERIAL FAILURE
        FACTOR(S)
           MISCELLANEOUS ACTS,CONDITIONS - PREVIOUS DAMAGE
        EMERGENCY CIRCUMSTANCES - PRECAUTIONARY LANDING ON AIRPORT
                                  SUSPECTED MECHANICAL DISCREPANCY
        REMARKS- L GR ACTUATOR BOSS FAILED,TIME UNDETERMINED. LND WITH L GR PARTIALLY EXTENDED.
```

## Aircraft

- Registration: [N788C](https://openairdocs.org/deregistered/N788C-1981-07-07), registration cancelled 1981-07-07, S/N U124 (OpenAirDocs)
- Reported make and model: BEECH 99A
- Registry model: [Beech 99](https://openairdocs.org/model/beech-99) (registry code 1154002) (OpenAirDocs)
- Category: Airplane
- Engines: turbo prop
- Damage: Minor damage
- Airport: Philadelphia Intl

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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