# NTSB FTW70F0156: Piper PA-23, N3471P, Clear Springs, TX, July 20, 1969

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Closed
- Date: July 20, 1969
- Place: Clear Springs, TX · CLEAR SPRINGS, TX
- Phase of flight: [Approach](https://openairdocs.org/ntsb-phases/500) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 2 uninjured
- Status: Completed, report March 12, 1970
- Report: Brief approved by the director
- NTSB case key (mKey): 167390
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=FTW70F0156
- Page: https://openairdocs.org/ntsb/FTW70F0156

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-3227  69/7/20    CLEAR SPRINGS,TEX   PIPER PA-23         CR-  0  0  2  INSTRUCTIONAL             COMMERCIAL, FL.INSTR.,
        TIME - 1630                    N3471P              PX-  0  0  0  DUAL                      AGE 44, 8060 TOTAL HOURS,
                                       DAMAGE-SUBSTANTIAL  OT-  0  0  0                            14 IN TYPE, INSTRUMENT
                                                                                                   RATED.
        NAME OF AIRPORT - CLEAR SPRINGS
        DEPARTURE POINT             INTENDED DESTINATION
          SAN ANTONIO,TEX             SAN ANTONIO,TEX
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           ENGINE FAILURE OR MALFUNCTION                            LANDING: TRAFFIC PATTERN-CIRCLING
           STALL: MUSH                                              IN FLIGHT: OTHER
        PROBABLE CAUSE(S)
           MISCELLANEOUS ACTS,CONDITIONS - SIMULATED CONDITIONS
           PILOT IN COMMAND - IMPROPER IN-FLIGHT DECISIONS OR PLANNING
           WEATHER - HIGH DENSITY ALTITUDE
        COMPLETE POWER LOSS - COMPLETE ENGINE FAILURE/FLAMEOUT-1 ENGINE
        WEATHER BRIEFING - BRIEFED BY FLIGHT SERVICE PERSONNEL, BY PHONE
        WEATHER FORECAST - FORECAST SUBSTANTIALLY CORRECT
        EMERGENCY CIRCUMSTANCES - FORCED LANDING OFF AIRPORT ON LAND
        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                  TEMPERATURE-F
          NONE                                                      100
        TYPE OF WEATHER CONDITIONS                               TYPE OF FLIGHT PLAN
          VFR                                                      NONE
        REMARKS- L ENG CUT BACK,THEN QUIT.FEATH PROP.UNABLE TO MAINTAIN SINGLE ENG FLT.DENSITY ALT ABOUT 5000 FT.
```

## Aircraft

- Registration: [N3471P](https://openairdocs.org/deregistered/N3471P-1970-12-31), registration cancelled 1970-12-31, S/N 23-1445 (OpenAirDocs)
- Reported make and model: PIPER PA-23
- Registry model: [Piper PA-23-160](https://openairdocs.org/model/piper-pa-23-160) (registry code 7102304) (OpenAirDocs)
- Category: Airplane
- Engines: reciprocating
- Damage: Substantial damage
- Airport: Clear Springs

## Other investigations on N3471P (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 MKC67F0612](https://openairdocs.org/ntsb/MKC67F0612), May 24, 1967: Piper PA-23 (N3471P), Hopkins, MN, 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.

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