# NTSB SEA76DYA44: Aero Comdr 600S2R, N4990X, Rexburg, ID, August 2, 1976

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Closed
- Date: August 2, 1976
- Place: Rexburg, ID · REXBURG, ID
- Location: 43.8229° N, 111.7910° W: Placed by OpenAirDocs: center of Rexburg, ID, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=43.8229&lon=-111.7910&mi=10
- Phase of flight: [Initial climb](https://openairdocs.org/ntsb-phases/350) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 1 uninjured
- Status: Completed, report August 24, 1976
- Report: Brief approved by the director
- NTSB case key (mKey): 155541
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=SEA76DYA44
- Page: https://openairdocs.org/ntsb/SEA76DYA44

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-2202   76/8/2  NR.REXBURG,ID         AERO COMDR 600S2R   CR-  0  0  1  COMMERCIAL                COMMERCIAL, FL.INSTR.,
        TIME - 1410                    N4990X              PX-  0  0  0  ASSOC CROP CTL ACTIVITY   AGE 34, 6590 TOTAL HOURS,
                                       DAMAGE-SUBSTANTIAL  OT-  0  0  0                            10 IN TYPE, INSTRUMENT
                                                                                                   RATED.
        NAME OF AIRPORT - REXBURG MUNI
        DEPARTURE POINT             INTENDED DESTINATION
         REXBURG,ID                   LOCAL
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           STALL: MUSH                                              TAKEOFF: INITIAL CLIMB
        PROBABLE CAUSE(S)
           PILOT IN COMMAND - FAILED TO OBTAIN/MAINTAIN FLYING SPEED
         SPECIAL DATA
          TOTAL HOURS IN CROP CONTROL -  230                       KIND OF OPERATION - SPRAYING CROPS
          KIND OF CROP - OTHER                                     TYPE OF CHEMICAL USED - LIQUID CHEMICAL-TOXIC
          PILOT' S SEAT BELT -UNKNOWN/NOT REPORTED                 GLOVES - USED
          GOGGLES - NOT USED                                       CRASH HELMET - AVAILABLE USED
          COCKPIT CRASHPAD - INSTALLED                             CRASH BAR - INSTALLED
          TANK/HOPPER-LOCATION - FORWARD OF PILOT
```

## Aircraft

- Registration: [N4990X](https://openairdocs.org/aircraft/N4990X), registered now, S/N 5035R, built 1975 (OpenAirDocs)
- Reported make and model: AERO COMDR 600S2R
- Registry model: [Rockwell International S-2R](https://openairdocs.org/model/rockwell-international-s-2r) (registry code 7630202) (OpenAirDocs)
- Registry engine: [Wright C7BA series](https://openairdocs.org/engine/wright-c7ba-series) (registry code 67017, reciprocating) (OpenAirDocs)
- Category: Airplane
- Engines: reciprocating
- Damage: Substantial damage
- Airport: Rexburg Muni

## 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 19760802021499A](https://openairdocs.org/incident/19760802021499A), Aug 2, 1976: Airpts A9A, Rexburg, ID, Substantial damage

## Other investigations on N4990X (1)

From the NTSB's public API. Aircraft are matched to registry aircraft by N-number and event date; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model.

- [NTSB CEN26LA221](https://openairdocs.org/ntsb/CEN26LA221), May 20, 2026: Rockwell International S-2R (N4990X), Gause, TX, substantial damage. Probable cause: The loss of engine power due to fuel starvation. Contributing to the accident was the separated wing fuel tank screen and sealant debris in the fuel tank.

From the NTSB's public API. Aircraft are matched to registry aircraft by N-number and event date; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model.

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