# NTSB OAK71DVD36: Champion 7GC-AA, N9533S, Santa Rosa, CA, March 21, 1971

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Closed
- Date: March 21, 1971
- Place: Santa Rosa, CA · SANTA ROSA, CA
- Location: 38.4405° N, 122.7144° W: Placed by OpenAirDocs: center of Santa Rosa, CA, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=38.4405&lon=-122.7144&mi=10
- Phase of flight: [Maneuvering](https://openairdocs.org/ntsb-phases/450) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 2 uninjured
- Status: Completed, report October 7, 1971
- Report: Brief approved by the director
- NTSB case key (mKey): 132999
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=OAK71DVD36
- Page: https://openairdocs.org/ntsb/OAK71DVD36

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-0102  71/3/21  NR.SANTA ROSA,CALIF   CHAMPION 7GC-AA     CR-  0  0  1  NONCOMMERCIAL             COMMERCIAL, AGE 29, 492
        TIME - 1530                    N9533S              PX-  0  0  1  PLEASURE/PERSONAL TRANSP  TOTAL HOURS, 4 IN TYPE,
                                       DAMAGE-SUBSTANTIAL  OT-  0  0  0                            INSTRUMENT RATED.
        DEPARTURE POINT             INTENDED DESTINATION
          PETALUMA,CALIF              LOCAL
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           AIRFRAME FAILURE: IN FLIGHT                              IN FLIGHT: ACROBATICS
        PROBABLE CAUSE(S)
           PILOT IN COMMAND - EXCEEDED DESIGNED STRESS LIMITS OF AIRCRAFT
           AIRFRAME - WINGS: SKIN AND ATTACHMENTS
           MISCELLANEOUS ACTS,CONDITIONS - DISTORTED
        REMARKS- R WING LEADING EDGE BETWEEN TIP RIB AND JURY STRUT DEFORMED AND DISPLACED UPWARD.
```

## Aircraft

- Registration: [N9533S](https://openairdocs.org/deregistered/N9533S-2012-11-20), registration cancelled 2012-11-20, S/N 73, built 1966 (OpenAirDocs)
- Reported make and model: CHAMPION 7GC-AA
- Registry model: [Champion 7GCAA](https://openairdocs.org/model/champion-7gcaa) (registry code 21101N8) (OpenAirDocs)
- Registry engine: [Lycoming 0-320 series](https://openairdocs.org/engine/lycoming-0-320-series) (registry code 41508, reciprocating) (OpenAirDocs)
- Category: Airplane
- Engines: reciprocating
- Damage: Substantial damage

## Other investigations on N9533S (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 ANC86LA019](https://openairdocs.org/ntsb/ANC86LA019), Dec 22, 1985: Bellanca 7GCAA (N9533S), Anchorage, AK, substantial damage
- [NTSB OAK67D0222](https://openairdocs.org/ntsb/OAK67D0222), Oct 20, 1966: Champion 7GCAA (N9533S), Petaluma, CA, substantial 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.

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.