# NTSB MKC75FCD22: Hughes 269B, N9487F, Waterloo, IA, October 30, 1974

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Closed
- Date: October 30, 1974
- 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: [Enroute](https://openairdocs.org/ntsb-phases/400) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 2 uninjured
- Status: Completed, report December 3, 1974
- Report: Brief approved by the director
- NTSB case key (mKey): 140950
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=MKC75FCD22
- Page: https://openairdocs.org/ntsb/MKC75FCD22

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-3389  74/10/30   WATERLOO,IOWA       HUGHES 269B         CR-  0  0  2  INSTRUCTIONAL             COMMERCIAL, FL.INSTR.,
        TIME - 0935                    N9487F              PX-  0  0  0  DUAL                      AGE 25, 1207 TOTAL HOURS,
                                       DAMAGE-SUBSTANTIAL  OT-  0  0  0                            53 IN TYPE, NOT
                                                                                                   INSTRUMENT RATED.
        NAME OF AIRPORT - WATERLOO MUNI
        DEPARTURE POINT             INTENDED DESTINATION
          WATERLOO,IOWA               LOCAL
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           COLLISION WITH GROUND/WATER: UNCONTROLLED                IN FLIGHT: OTHER
        PROBABLE CAUSE(S)
           DUAL STUDENT - MISJUDGED DISTANCE,SPEED,ALTITUDE OR CLEARANCE
           DUAL STUDENT - FAILED TO MAINTAIN ADEQUATE ROTOR R.P.M.
           PILOT IN COMMAND - INADEQUATE SUPERVISION OF FLIGHT
        REMARKS- PRACTICING QUICK STOPS.
```

## Aircraft

- Registration: [N9487F](https://openairdocs.org/deregistered/N9487F-2023-01-20), registration cancelled 2023-01-20, S/N 270313, built 1967 (OpenAirDocs)
- Reported make and model: HUGHES 269B
- Registry model: [Hughes 269B](https://openairdocs.org/model/hughes-269b) (registry code 4470502) (OpenAirDocs)
- Registry engine: [Lycoming I0360 series](https://openairdocs.org/engine/lycoming-i0360-series) (registry code 41515, reciprocating) (OpenAirDocs)
- Category: Helicopter
- Engines: reciprocating
- Damage: Substantial damage
- Airport: Waterloo 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 19741030036179A](https://openairdocs.org/incident/19741030036179A), Oct 30, 1974: Hughes 269B, Waterloo, IA, Substantial damage. Practicing quick stops.

## Other investigations on N9487F (4)

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 CHI88LA108](https://openairdocs.org/ntsb/CHI88LA108), May 7, 1988: Hughes 269B (N9487F), Minneapolis, MN, substantial damage
- [NTSB CHI84LA274](https://openairdocs.org/ntsb/CHI84LA274), Jul 3, 1984: Hughes 269B (N9487F), Eden Prairie, MN, substantial damage
- [NTSB MKC71DDM18](https://openairdocs.org/ntsb/MKC71DDM18), May 2, 1970: Hughes 269B (N9487F), Crosby, MN, substantial damage
- [NTSB MKC68F0506](https://openairdocs.org/ntsb/MKC68F0506), Mar 28, 1968: Hughes 269B (N9487F), St Paul, 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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