Cessna A188B N8677G
20 September 1990 · Hertsboro, Alabama, United States · No injuries
Summary
On 20 September 1990 at about 18:30 local time, a Cessna A188B registered N8677G, operated by Gardner Flying Services, was involved in an accident near Hertsboro, Alabama, United States. One person was on board and nobody was injured. The aircraft was substantially damaged. The NTSB has published a probable cause for this accident; it is quoted in full below.
The record
- Date
- at 18:30
- Classification
- Accident
- Location
- Hertsboro, Alabama, United States
- Coordinates
- 31.9004, -85.1491
- Aircraft
- Cessna A188B
- Registration
- N8677G
- Category
- Airplane
- Engines
- 1
- Operator
- Gardner Flying Services
- Operating rule
- Part 137: Agricultural
- Purpose of flight
- Aerial Application
- Phase of flight
- Not recorded
- Route
- Eaufala → Unknown
- Aircraft damage
- Substantial
- Weather
- VMC
- Light
- Day
- NTSB number
- ATL90LA173
People
Nobody was injured.
| On board | Died | Serious | Minor | Uninjured |
|---|---|---|---|---|
| 1 | 0 | 0 | 0 | 1 |
Probable cause
FATIGUE FAILURE OF THE PROPELLER BLADE WHICH RESULTED FROM IMPROPER OVERHAUL PROCEDURES, AND THE ABSENCE OF OIL IN THE PROPELLER HUB WHICH WOULD ALLOW THE DETECTION OF BLADE CRACKS.
Quoted verbatim from the NTSB record. This site does not paraphrase or interpret it.
Read the full NTSB narrative
DURING AERIAL APPLICATION ONE PROPELLER BLADE SEPARATED FROM THE ACFT. THE ACFT COLLIDED WITH A TREE DURING THE FORCED LANDING ROLL. EXAM OF THE PROPELLER REVEALED THAT A FATIGUE FRACTURE ORIGINATED AT A SCORE MARK IN THE HUB THREADS OF THE BLADE. DEPOSITS WERE FOUND IN THE FRACTURE ENRICHED BY CARBON & OXYGEN. GRAPHITE, THE LUBRICANT USED IN THE PROPELLER ASSEMBLY, IS CARBON BASED. TESTING SHOWED THAT THE BLADE'S HARDNESS & TENSILE STRENGTH WAS BELOW MFG SPECIFICATIONS. THE SAFETY BOARD BELIEVES THAT THE FRACTURE WAS OPENED UP DURING THE LAST PROPELLER OVERHAUL, ABOUT 583 OPERATING HOURS PRIOR TO THE ACCIDENT. ALSO, OIL REQUIRED IN THE HUB TO ALLOW EARLY DETECTION OF BLADE CRACKS WAS ABSENT.
Quoted verbatim from the NTSB record.
Other Cessna A188B accidents
| Date | Aircraft | Location | Operator | Outcome | Died |
|---|---|---|---|---|---|
| 22 Jun 1990 | Cessna A188B | Dayton, Washington, United States | Dayton Chemicals Inc | Minor injuries | - |
| 11 Sep 1990 | Cessna A188B | Aiken, South Carolina, United States | - | Fatal | 1 |
| 30 Apr 1990 | Cessna A188B | Perry, Texas, United States | DON Lowe | No injuries | - |
| 21 Sep 1990 | Cessna A188B | Vicksburg, Mississippi, United States | - | No injuries | - |
| 2 Aug 1990 | Cessna A188B | Amherst, Nebraska, United States | G & L Air Services, Inc. | Fatal | 1 |
| 10 Aug 1991 | Cessna A188B | Patterson, Louisiana, United States | Blanco Aviation, Inc. | Serious injuries | - |
Other accidents in this area
| Date | Aircraft | Location | Operator | Outcome | Died |
|---|---|---|---|---|---|
| 29 Sep 1990 | Helio HST-550A | Mobile, Alabama, United States | Mullins, Howard M. | Serious injuries | - |
| 30 Sep 1990 | Cessna 152 | Dothan, Alabama, United States | - | No injuries | - |
| 31 May 1990 | Hughes TH-55 | Brantley, Alabama, United States | State of al ABC Board | Fatal | 1 |
| 1 Aug 1990 | Cessna 150J | Baker Hill, Alabama, United States | - | Fatal | 2 |
| 17 Aug 1990 | Neal CHRISTEN EAGLE II | Akron, Alabama, United States | Moody/Linebarger | Fatal | 2 |
| 12 Apr 1990 | Jolly BAKENG DUCE | Brownsboro, Alabama, United States | - | Minor injuries | - |