# NTSB DIA69F0175: Cessna 172F, N7954U, Gaithersburg, MD, March 24, 1969

- Type: NTSB accident investigation
- Classification: Accident · Minor injuries · Closed
- Date: March 24, 1969
- Place: Gaithersburg, MD · GAITHERSBURG, MD
- Location: 39.1486° N, 77.1951° W: Placed by OpenAirDocs: center of Gaithersburg, MD, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=39.1486&lon=-77.1951&mi=10
- Phase of flight: [Enroute](https://openairdocs.org/ntsb-phases/400) (OpenAirDocs' grouping)
- Highest injury: Minor injuries
- Injuries: 3 minor
- Status: Completed, report June 25, 1969
- Report: Brief approved by the director
- NTSB case key (mKey): 189317
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=DIA69F0175
- Page: https://openairdocs.org/ntsb/DIA69F0175

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-1107  69/3/24    GAITHERSBURG,MD     CESSNA 172F         CR-  0  0  2  INSTRUCTIONAL             COMMERCIAL, FL.INSTR.,
        TIME - 2204                    N7954U              PX-  0  0  1  DUAL                      AGE 47, 3163 TOTAL HOURS,
                                       DAMAGE-DESTROYED    OT-  0  0  0                            35 IN TYPE, INSTRUMENT
                                                                                                   RATED.
        NAME OF AIRPORT - MONTGOMERY COUNTY
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           COLLIDED WITH: WIRES/POLES                               IN FLIGHT: DESCENDING
        PROBABLE CAUSE(S)
           PILOT IN COMMAND - CONTINUED VFR FLIGHT INTO ADVERSE WEATHER CONDITIONS
           PILOT IN COMMAND - IMPROPER IN-FLIGHT DECISIONS OR PLANNING
        FACTOR(S)
           WEATHER - LOW CEILING
           WEATHER - FOG
        WEATHER BRIEFING - BRIEFED BY WEATHER BUREAU PERSONEL, BY PHONE
        WEATHER FORECAST - FORECAST SUBSTANTIALLY CORRECT
        SKY CONDITION                                            CEILING AT ACCIDENT SITE
          UNKNOWN/NOT REPORTED                                      300
        VISIBILITY AT ACCIDENT SITE                              PRECIPITATION AT ACCIDENT SITE
          2 MILES OR LESS                                          NONE
        OBSTRUCTIONS TO VISION AT ACCIDENT SITE                  TEMPERATURE-F
          FOG                                                       53
        TYPE OF WEATHER CONDITIONS                               TYPE OF FLIGHT PLAN
          IFR                                                      NONE
        REMARKS- PLT STATED HE WAS FLYING IN AND OUT OF CLOUDS.ACFT STRUCK HIGH TENSION WIRES 133 FT ABOVE GROUND.
```

## Aircraft

- Registration: [N7954U](https://openairdocs.org/deregistered/N7954U-2013-07-23), registration cancelled 2013-07-23, S/N 17251954, built 1964 (OpenAirDocs)
- Reported make and model: CESSNA 172F
- Registry model: [Cessna 172F](https://openairdocs.org/model/cessna-172f) (registry code 2072414) (OpenAirDocs)
- Registry engine: [Continental 0-300 series](https://openairdocs.org/engine/continental-0-300-series) (registry code 17022, reciprocating) (OpenAirDocs)
- Category: Airplane
- Engines: reciprocating
- Damage: Destroyed
- Airport: Montgomery County

## Other investigations on N7954U (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 BFO93LA112](https://openairdocs.org/ntsb/BFO93LA112), Jul 6, 1993: Cessna 172 (N7954U), Normalville, PA, substantial damage. Probable cause: THE PRESENCE OF CARBURETOR ICING CONDITIONS, WHICH CAUSED A TOTAL LOSS OF ENGINE POWER. A FACTOR RELATED TO THE ACCIDENT WAS THE PILOT'S DELAYED USE OF CARBURETOR HEAT AND ROUGH TERRAIN.

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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