# NTSB LAX88DUJ06: Grumman G-164B, N66890, Chandler, AZ, July 22, 1988

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Final report
- Date: July 22, 1988, 10:00 local (17:00 UTC)
- Place: Chandler, AZ
- Coordinates: 33.320827, -111.870895 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=33.3208&lon=-111.8709&mi=10
- Phase of flight: [Maneuvering](https://openairdocs.org/ntsb-phases/450) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 1 uninjured
- Status: Completed, report December 29, 1989
- Report: Approved by Office Director
- NTSB case key (mKey): 25727
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=LAX88DUJ06
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/25727/pdf
- Page: https://openairdocs.org/ntsb/LAX88DUJ06

## Sequence of events

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

- Loss of engine power(partial) - mech failure/malf, maneuvering - aerial application
  - engine assembly,cylinder - failure,total (cause)
- Forced landing, descent - emergency
- Nose over, landing - flare/touchdown

## Analysis

DURING AN AERIAL APPLICATION FLIGHT, THE ENGINE EXPERIENCED A LOSS OF POWER. A FORCED LANDING WAS MADE IN AN OPEN FIELD AND DURING THE LANDING ROLL THE AIRPLANE NOSED OVER. INSPECTION OF THE ENGINE REVEALED THAT THE NUMBER FIVE CYLINDER DOME SEPARATED FROM THE LOWER PORTION.

## Aircraft

- Registration: N66890 (not matched to a registry record)
- Reported make and model: GRUMMAN G-164B
- Category: Airplane
- Serial number: 3268
- Airframe hours: 5508
- Engines: P&W R-985-AN1 450 horsepower reciprocating
- Damage: Substantial damage
- Flight: Aerial application, Part 137
- Registered owner: San Tan Duster, Inc.
- Airworthiness certificate: Special, Restricted (Special)
- Last inspection: Annual, July 22, 1988, 44 hours before
- Departed: P-10, CHANDLER, AZ

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 37; commercial; airplane ratings: single-engine land, multi-engine land; medical: class 2, unknown; seat: front; flight hours: 8,450 total

## Weather

- Conditions: Visual (VMC), Day
- Wind: 10° at 4 knots
- Visibility: 35 statute miles
- Lowest ceiling: none
- Temperature: 102 °F
- Altimeter: 29.00 inHg
- Observed at: PRC, 3 nm away

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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