# NTSB LAX83LA328: Grumman American AA-1B, N1507R, Boulder City, NV, July 9, 1983

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Limited investigation · Final report
- Date: July 8, 1983, 18:34 local (Jul 9, 1983, 01:34 UTC)
- Place: Boulder City, NV
- Coordinates: 35.990005, -114.809944 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=35.9900&lon=-114.8099&mi=10
- Phase of flight: [Landing](https://openairdocs.org/ntsb-phases/550) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 2 uninjured
- Status: Completed
- Report: Approved by Office Director
- NTSB case key (mKey): 23784
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=LAX83LA328
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/23784/pdf
- Page: https://openairdocs.org/ntsb/LAX83LA328

## Sequence of events

In NTSB's coding before 2008 (https://www.ntsb.gov/GILS/Documents/codman.pdf).

- Loss of control - in flight, landing
  - weather condition - unfavorable wind (contributing factor)
  - aborted landing - performed, pilot in command (contributing factor)
  - go-around - initiated, pilot in command (contributing factor)
  - in-flight planning/decision - improper, pilot in command (cause)
  - fatigue, pilot in command (contributing factor)
- In flight collision with terrain/water, landing
  - weather condition - tailwind (contributing factor)
  - terrain condition - high obstruction(s) (contributing factor)
  - terrain condition - rising (contributing factor)

## Analysis

THE ACFT COLLIDED WITH RISING TERRAIN DURING A GO-AROUND. THE PILOT ATTEMPTED A LANDING AT BOULDER CITY IN A 20-30 KT. WIND. WHEN THE ACFT BOUNCED THE PILOT DECIDED TO GO-AROUND. INSTEAD OF CLIMBING INTO THE WIND HE TURNED DOWNWIND AT LOW ALTITUDE WHERE HE ENCOUNTERED WIRES AND POLES. IN AVOIDING THE POWER LINES BY GOING UNDER THEM THE PILOT COLLIDED WITH THE RISING TERRAIN.

## Aircraft

- Registration: [N1507R](https://openairdocs.org/deregistered/N1507R-2012-08-06), registration cancelled 2012-08-06, S/N AA1B0657, built 1976 (OpenAirDocs)
- Reported make and model: GRUMMAN AMERICAN AA-1B
- Registry model: [Grumman American Avn. AA-1B](https://openairdocs.org/model/grumman-american-avn-aa-1b) (registry code 3960103) (OpenAirDocs)
- Registry engine: [Lycoming 0-235 series](https://openairdocs.org/engine/lycoming-0-235-series) (registry code 41505, 4 cycle) (OpenAirDocs)
- Category: Airplane
- Serial number: 0657
- Airframe hours: 1223
- Engines: LYCOMING O-235-C2C 108 horsepower reciprocating
- Damage: Destroyed
- Fire: On-Ground
- Flight: Personal, Part 91
- Registered owner: Harold B. Cooper
- Airworthiness certificate: Standard, Normal
- Last inspection: Annual, July 27, 1982, 73 hours before
- Departed: MLF, MILFORD, UT
- Destination: L22, YUCCA VALLEY, CA
- Airport: BLD, Boulder City Muni, runway 17, 2,880 × 110 ft, dirt

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 64; private; airplane ratings: single-engine land; medical: class 3, expired; seat: left; flight hours: 475 total, 466 in this make and model, 398 as pilot in command, 22 in the last 90 days, 9 in the last 24 hours

## Weather

- Conditions: Visual (VMC), Day
- Wind: 170° at 17 knots, gusting 24
- Visibility: 75 statute miles
- Lowest ceiling: none
- Temperature: 99 °F, dew point 48 °F
- Altimeter: 29.00 inHg
- Observed at: LAS, 17 nm away

## 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 19830708033419A](https://openairdocs.org/incident/19830708033419A), Jul 8, 1983: Gulstm AA1B, Boulder City, NV, Destroyed. Tried to land with a 30 knot tailwind. Advised to go around. Struck rising terrain on the climbout.

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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