# NTSB MIA75AM023: Brittnorman BN-2A, N46JA, San Juan, PR, October 20, 1974

- Type: NTSB accident investigation
- Classification: Accident · Serious injuries · Closed
- Date: October 20, 1974
- Place: San Juan, PR · SAN JUAN, PR
- Location: 18.4663° N, 66.1057° W: Placed by OpenAirDocs: center of San Juan, PR, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=18.4663&lon=-66.1057&mi=10
- Phase of flight: [Standing](https://openairdocs.org/ntsb-phases/150) (OpenAirDocs' grouping)
- Highest injury: Serious injuries
- Injuries: 1 serious, 2 uninjured
- Status: Completed, report January 14, 1975
- Report: Brief approved by the director
- NTSB case key (mKey): 144504
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=MIA75AM023
- Page: https://openairdocs.org/ntsb/MIA75AM023

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-3957  74/10/20   SAN JUAN,PR         BRITTNORMAN BN-2A   CR-  0  1  0  COMMERCIAL                AIRLINE TRANSPORT, AGE
        TIME - 1930                    N46JA               PX-  0  0  2  COMMUTER AIR CARRIER      27, 3913 TOTAL HOURS, 69
                                       DAMAGE-NONE         OT-  0  0  0  AIR TAXI-PASSG S-D        IN TYPE, INSTRUMENT
                                                                                                   RATED.
        NAME OF AIRPORT - ISLA VERDE INTL
        DEPARTURE POINT             INTENDED DESTINATION
          SAN JUAN,PR                UNKNOWN/NOT REPORTED
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           PROPELLER/ROTOR ACCIDENT TO PERSON                       STATIC: IDLING ENGINE(S)
        PROBABLE CAUSE(S)
           PILOT IN COMMAND - FAILED TO FOLLOW APPROVED PROCEDURES,DIRECTIVES,ETC.
           PILOT IN COMMAND - SPONTANEOUS-IMPROPER ACTION
        REMARKS- PLT OPENED WINDOW TO SIGNAL GROUND CREW.HAND SEVERED BY PROP.
```

## Aircraft

- Registration: N46JA (not matched to a registry record)
- Reported make and model: BRITTNORMAN BN-2A
- Category: Airplane
- Engines: reciprocating
- Damage: No damage
- Airport: Isla Verde Intl

## FAA reports on this event (1)

The FAA's own accident and incident reports, matched to the aircraft by N-number and date (OpenAirDocs).

- [Accident 19741020040109A](https://openairdocs.org/incident/19741020040109A), Oct 20, 1974: Bnorm BN2A, San Juan, Puerto Rico. Plt opened window to signal ground crew. Hand severed by prop.

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.