Aerospatiale AS-355F-1 N57967
18 July 1986 · Morgan City, Louisiana, United States · No injuries
Summary
On 18 July 1986 at about 12:55 local time, a Aerospatiale AS-355F-1 registered N57967, operated by Mobil Oil Corp., was involved in an accident near Morgan City, Louisiana, United States. One person was on board and nobody was injured. The aircraft was destroyed. No probable cause statement is available for this record.
The record
- Date
- at 12:55
- Classification
- Accident
- Location
- Morgan City, Louisiana, United States
- Nearest airport
- Mobil Oil Heliport
- Coordinates
- 29.7303, -91.1308
- Aircraft
- Aerospatiale AS-355F-1
- Registration
- N57967
- Category
- Helicopter
- Engines
- 1
- Operator
- Mobil Oil Corp.
- Operating rule
- Part 91: General Aviation
- Purpose of flight
- Instructional
- Phase of flight
- Not recorded
- Aircraft damage
- Destroyed
- Weather
- VMC
- Light
- Day
- NTSB number
- LAX86MA309
People
Nobody was injured.
| On board | Died | Serious | Minor | Uninjured |
|---|---|---|---|---|
| 1 | 0 | 0 | 0 | 1 |
Probable cause
The NTSB has not published a probable cause for this record. No probable cause statement is present in the source data.
Nothing about the cause is stated here that is not in the source record.
Read the full NTSB narrative
THE PLT FLEW TO A NEARBY ARPT TO PRACTICE TAKEOFFS & LNDGS. HE RPRTD THAT AFTER 3 LNDGS 'OUT OF A HOVER,' HE RETURNED TO THE DEPARTURE HELIPORT & LNDD AGAIN FROM A HOVER. DRG TOUCHDOWN, THE HELICOPTER BGN TO ROCK FM SIDE TO SIDE & ENTEREDGROUND RESONANCE. THE PLT RPRTD HE LOWERED THE COLLECTIVE PITCH TO THE BOTTOM STOP, BUT STATED THE SIDEWARD BOUNCING FM SKID TO SKID WORSENED. HE REACHED FOR THE OVERHEAD THROTTLES, BUT WAS BEING FLAILED ABOUT THE COCKPIT & COULD NOT HOLD ONTO THEM. SUBSEQUENTLY, THE HELICOPTER WAS EXTENSIVELY DAMAGED. WITNESSES VERIFIED THE SIDE TO SIDE BOUNCING & RPRTD HEARING A LOUD METALLIC SOUND BEFORE THE HELICOPTER TOUCHED DOWN. A POST-CRASH EXAM REVEALED THE L FRONT, L REAR & RGT REAR SUPPORT TUBES (GEARBOX BARS) WERE BUCKLED IN A 'D' SHAPE & FRACTURED AT MIDSPAN. METALLURGICAL EXAM OF THE FRACTUREAREAS DISCLOSED EVIDENCE OF HIGH STRESS, LOW AMPLITUDE FATIGUE. NO HISTORY OF HARD LNDGS OR MAINTAINANCE/MANUFACTURING DISCREPANCIES WERE FND CONCERNING THE GEARBOX BARS; L FRONT BAR HAD 1522 HRS OF SVC, REAR BARS HAD 3396 HRS OF SVC.
Quoted verbatim from the NTSB record.
Other Aerospatiale AS-355F accidents
| Date | Aircraft | Location | Operator | Outcome | Died |
|---|---|---|---|---|---|
| 31 May 1986 | Aerospatiale AS-355F-1 | Kameula, Hawaii, United States | Hemmeter Aviation, Inc. | Minor injuries | - |
| 18 Jun 1986 | Aerospatiale AS-355F-1 | Galveston, Texas, United States | - | No injuries | - |
| 4 Feb 1985 | Aerospatiale AS 355F-1 | Sabine Pass, Texas, United States | - | No injuries | - |
| 4 Aug 1985 | Aerospatiale AS-355F | Chamblee, Georgia, United States | - | Serious injuries | - |
| 19 Aug 1987 | Aerospatiale AS-355F-1 | Ship Shoal 214C | - | Serious injuries | - |
| 4 Jan 1984 | Aerospatiale AS-355F | Morgan City, Louisiana, United States | - | Fatal | 2 |
Other accidents in this area
| Date | Aircraft | Location | Operator | Outcome | Died |
|---|---|---|---|---|---|
| 5 Sep 1986 | Cessna 172N | Vick, Louisiana, United States | - | No injuries | - |
| 30 Sep 1986 | Piper PA-22-160 | Abbeville, Louisiana, United States | - | Minor injuries | - |
| 9 Jan 1986 | Bell BH206L-1 | Gulf of Mexico, Louisiana, United States | - | Serious injuries | - |
| 29 Jan 1986 | Air Tractor AT301 | Gilbert, Louisiana, United States | S. L. Holcomb | No injuries | - |
| 20 Feb 1986 | MBB BO-105-CBS | Lake Charles, Louisiana, United States | - | No injuries | - |
| 2 Mar 1986 | Cessna 172P | Many, Louisiana, United States | Kenneth R. Bennett | No injuries | - |