ASN Wikibase Occurrence # 379500
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| Date: | Friday 18 May 1984 |
| Time: | 06:40 LT |
| Type: |  Grumman G-164A Ag-Cat |
| Owner/operator: | Low Level Dusting Co. Inc. |
| Registration: | N9822 |
| MSN: | 1282 |
| Year of manufacture: | 1974 |
| Total airframe hrs: | 1900 hours |
| Engine model: | P&W R-1340-AN1 |
| Fatalities: | Fatalities: 0 / Occupants: 1 |
| Aircraft damage: | Substantial |
| Category: | Accident |
| Location: | Wiggins, CO -
 United States of America
|
| Phase: | En route |
| Nature: | Agricultural |
| Departure airport: | Greeley, CO (KGXY) |
| Investigating agency: | NTSB |
| Confidence Rating: |  Accident investigation report completed and information captured |
WHILE EN ROUTE TO A FIELD FOR AERIAL APPLICATION, AN OIL MIST APPEARED ON THE WINDSHIELD OF THE ACFT. SHORTLY AFTER THAT, THE ENG PROGRESSIVELY LOST POWER & THE PLT MADE A FORCED LANDING IN A PASTURE. DURING THE LANDING ROLL, THE ACFT HIT A HOLE IN THE GROUND & NOSED OVER. AN EXAM OF THE ENG REVEALED THAT THE EXHAUST ROCKER BOX ON THE #1 CYLINDER HAD CRACKED & SEPARATED WHERE THE OIL LINES WERE ATTACHED. THERE WERE 2 PRATT & WHITNEY SERVICE BULLETINS CONCERNING R-1340-AN1 CYLINDERS THAT WERE NOT COMPLIED WITH. SB-1720 RECOMMENDED AN INSPECTION OF THE CYLINDER HEADS DURING OVERHAUL. SB-1743 CALLED FOR REPLACEMENT OF ALL CYLINDERS WITH IMPROVED CYLINDERS HAVING A 5/8 INCH REENFORCEMENT WEB ON THE EXHAUST ROCKER BOX. THE OLD CYLINDERS HAD 1/2 INCH WEB. THE ACFT HAD FLOWN 360 HRS SINCE THE LAST MAJOR OVERHAUL.
Probable Cause:
Accident investigation:
 |
|
Sources:
NTSB DEN84LA153
History of this aircraft
Other occurrences involving this aircraft
| 1 August 2012 | N9822 | Low Level Dusting Co Inc | 0 | La Salle, Colorado | |
sub |
| Maintenance issues | ||||||
Location
Revision history:
| Date/time | Contributor | Updates |
|---|---|---|
| 01-Apr-2024 06:29 | ASN Update Bot | Added |
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