# NTSB MKC73AK020: Amer Avco AA-1A, N9377L, Waterloo, IA, September 3, 1972

- Type: NTSB accident investigation
- Classification: Accident · Fatal · Closed
- Date: September 3, 1972
- Place: Waterloo, IA · WATERLOO, IA
- Location: 42.4928° N, 92.3430° W: Placed by OpenAirDocs: center of Waterloo, IA, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=42.4928&lon=-92.3430&mi=10
- Phase of flight: [Standing](https://openairdocs.org/ntsb-phases/150) (OpenAirDocs' grouping)
- Highest injury: Fatal
- Injuries: 1 fatal, 1 uninjured
- Status: Completed, report February 27, 1973
- Report: Brief approved by the director
- NTSB case key (mKey): 163277
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=MKC73AK020
- Page: https://openairdocs.org/ntsb/MKC73AK020

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-2464   72/9/3    WATERLOO,IOWA       AMER AVCO AA-1A     CR-  0  0  1  NONCOMMERCIAL             PRIVATE, AGE 47, 200
        TIME - 1252                    N9377L              PX-  1  0  0  PLEASURE/PERSONAL TRANSP  TOTAL HOURS, 113 IN TYPE,
                                       DAMAGE-MINOR        OT-  0  0  0                            NOT INSTRUMENT RATED.
        NAME OF AIRPORT - WATERLOO
        DEPARTURE POINT             INTENDED DESTINATION
          WATERLOO,IOWA               LACROSSE,WIS
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           PROPELLER/ROTOR ACCIDENT TO PERSON                       STATIC: IDLING ENGINE(S)
        PROBABLE CAUSE(S)
           PERSONNEL - MISCELLANEOUS-PERSONNEL: PASSENGER
        FACTOR(S)
           PILOT IN COMMAND - INADEQUATE PREFLIGHT PREPARATION AND/OR PLANNING
        REMARKS- ACFT WOULDNT MOVE DUE NOSE WHEEL CHOCK. PAX JUMPED OFF R WG INTO PROP.PAX B/A LEVEL 0.25 PCT.
```

## Aircraft

- Registration: [N9377L](https://openairdocs.org/aircraft/N9377L), registered now, S/N AA1A-0077, built 1971 (OpenAirDocs)
- Reported make and model: AMER AVCO AA-1A
- Registry model: [American AA-1A](https://openairdocs.org/model/american-aa-1a) (registry code 0630710) (OpenAirDocs)
- Registry engine: [Lycoming 0-235 series](https://openairdocs.org/engine/lycoming-0-235-series) (registry code 41505, 4 cycle) (OpenAirDocs)
- Category: Airplane
- Engines: reciprocating
- Damage: Minor damage
- Airport: Waterloo

## Other investigations on N9377L (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 CHI75DEE71](https://openairdocs.org/ntsb/CHI75DEE71), Jun 28, 1975: Grum Amer AA1-A (N9377L), Geneseo, IL, 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.