# NTSB LAX74IL006: Cessna 402A, N4527Q, Prescott, AZ, May 17, 1973

- Type: NTSB incident investigation
- Classification: Incident · No injuries · Closed
- Date: May 17, 1973
- Place: Prescott, AZ · PRESCOTT, AZ
- Location: 34.5400° N, 112.4685° W: Placed by OpenAirDocs: center of Prescott, AZ, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=34.5400&lon=-112.4685&mi=10
- Phase of flight: [Enroute](https://openairdocs.org/ntsb-phases/400) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 1 uninjured
- Status: Completed, report November 30, 1973
- Report: Brief approved by the director
- Safety recommendations: Yes
- NTSB case key (mKey): 79590
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=LAX74IL006
- Page: https://openairdocs.org/ntsb/LAX74IL006

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
5-0026  73/5/17    PRESCOTT,ARIZ       CESSNA 402A         CR-  0  0  1  COMMERCIAL                COMMERCIAL, AGE 27, 2023
        TIME - 1932                    N4527Q              PX-  0  0  0  COMMUTER AIR CARRIER      TOTAL HOURS, 1300 IN
                                       DAMAGE-MINOR        OT-  0  0  0  AIR TAXI-PASSG S-D        TYPE, INSTRUMENT RATED.
        CLASSIFIED AS INCIDENT
        DEPARTURE POINT             INTENDED DESTINATION
          PRESCOTT,ARIZ               LAKE HAVASU CTY,ARIZ
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           FIRE OR EXPLOSION: IN FLIGHT                             IN FLIGHT: NORMAL CRUISE
           ENGINE FAILURE OR MALFUNCTION                            IN FLIGHT: NORMAL CRUISE
        PROBABLE CAUSE(S)
           POWERPLANT - EXHAUST SYSTEM: EXTERNAL SUPERCHARGER
           MISCELLANEOUS ACTS,CONDITIONS - STUCK
           MISCELLANEOUS ACTS,CONDITIONS - LEAK/LEAKAGE
           MISCELLANEOUS ACTS,CONDITIONS - FIRE IN ENGINE
        EMERGENCY CIRCUMSTANCES - PRECAUTIONARY LANDING ON AIRPORT
                                  SUSPECTED MECHANICAL DISCREPANCY
        REMARKS- OIL LEAKED FROM TURBOCHARGER THRU STUCK OPEN MAN PRESS RELIEF VALVE & IGNITED BY HOT EXH MANIFOLD.
```

## Aircraft

- Registration: N4527Q (not matched to a registry record)
- Reported make and model: CESSNA 402A
- Category: Airplane
- Engines: reciprocating
- Damage: Minor 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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