# NTSB OAK67D0030: Aeronca 7EC, N9098B, San Francisco, CA, July 14, 1966

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Closed
- Date: July 14, 1966
- Place: San Francisco, CA · SAN FRANCISCO, CA
- Location: 37.7750° N, 122.4194° W: Placed by OpenAirDocs: center of San Francisco, CA, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=37.7750&lon=-122.4194&mi=10
- Phase of flight: [Taxi](https://openairdocs.org/ntsb-phases/250) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 1 uninjured
- Status: Completed, report August 12, 1966
- Report: Brief approved by the director
- NTSB case key (mKey): 122546
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=OAK67D0030
- Page: https://openairdocs.org/ntsb/OAK67D0030

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-1569  66/7/14    SAN FRANCISCO CAL   AERONCA 7EC         CR-  0  0  1  NONCOMMERCIAL             PRIVATE, AGE 23, 183
        TIME - 1645                    N9098B              PX-  0  0  0  PLEASURE/PERSONAL TRANSP  TOTAL HOURS, 98 IN TYPE,
                                       DAMAGE-SUBSTANTIAL  OT-  0  0  0                            NOT INSTRUMENT RATED.
        NAME OF AIRPORT - SAN FRAN INTL
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           GROUND-WATER LOOP-SWERVE                                 TAXI: FROM LANDING
           NOSE OVER/DOWN                                           TAXI: FROM LANDING
        PROBABLE CAUSE(S)
           PILOT IN COMMAND - IMPROPER OPERATION OF BRAKES AND/OR FLIGHT CONTROLS
        FACTOR(S)
           WEATHER - UNFAVORABLE WIND CONDITIONS
        SKY CONDITION                                            CEILING AT ACCIDENT SITE
          CLEAR                                                    UNLIMITED
        VISIBILITY AT ACCIDENT SITE                              PRECIPITATION AT ACCIDENT SITE
          5 OR OVER(UNLIMITED)                                     NONE
        OBSTRUCTIONS TO VISION AT ACCIDENT SITE                  RELATIVE BEARING OF WIND
          NONE                                                     LEFT CROSS WIND 248-292 DEGREES
        WIND DIRECTION-DEGREES                                   WIND VELOCITY-KNOTS
          270                                                       19
        TYPE OF WEATHER CONDITIONS                               TYPE OF FLIGHT PLAN
          VFR                                                      NONE
```

## Aircraft

- Registration: [N9098B](https://openairdocs.org/deregistered/N9098B-2013-05-08), registration cancelled 2013-05-08, S/N 7EC-638 (OpenAirDocs)
- Reported make and model: AERONCA 7EC
- Registry model: [Champion 7EC](https://openairdocs.org/model/champion-7ec) (registry code 21101NM) (OpenAirDocs)
- Registry engine: [Continental C90 series](https://openairdocs.org/engine/continental-c90-series) (registry code 17009, reciprocating) (OpenAirDocs)
- Category: Airplane
- Engines: reciprocating
- Damage: Substantial damage
- Airport: San Fran Intl

## Other investigations on N9098B (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 FTW98LA409](https://openairdocs.org/ntsb/FTW98LA409), Sep 26, 1998: Champion 7EC (N9098B), Catoosa, OK, substantial damage. Probable cause: The pilot's failure to maintain control of the airplane resulting in an inadvertent stall.

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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