ASN Wikibase Occurrence # 379137
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| Date: | Monday 25 June 1984 |
| Time: | 13:20 LT |
| Type: |  Bell 212 |
| Owner/operator: | Pumpkin Air Inc. |
| Registration: | N2180J |
| MSN: | 31207 |
| Year of manufacture: | 1981 |
| Total airframe hrs: | 1177 hours |
| Engine model: | P&W PT6T-3B-TPAC |
| Fatalities: | Fatalities: 0 / Occupants: 10 |
| Aircraft damage: | Substantial |
| Category: | Accident |
| Location: | Galveston, TX -
 United States of America
|
| Phase: | Initial climb |
| Nature: | Unknown |
| Departure airport: | Galveston, TX |
| High Isl 474, GM | |
| Investigating agency: | NTSB |
| Confidence Rating: |  Accident investigation report completed and information captured |
DURING TAKEOFF, THE HELICOPTER LIFTED OFF IN AN 80% POWER CHECK & THE PLT BEGAN A NORTHERLY DEPARTURE. BEFORE ACHIEVING TRANSLATIONAL LIFT, THE ROTOR RPM DROPPED TO APRX 85%. THE TORQUE METER INDICATED A SPLIT WITH THE #1 ENG INDICATING ABOUT 55% & THE #2 ENG INDICATING AS LOW AS 39%. THE LOW ROTOR RPM AUDIO & WARNING LIGHT ACTIVATED & THE HELICOPTER BEGAN TO SINK. THE PLT HAD INSUFFICIENT ALT TO RECOVER RPM. HE LANDED THE HELICOPTER IN A CLEAR AREA IN A NOSE HIGH ATTITUDE & WITH FORWARD SPEED. DURING THE LANDING, THE SKIDS WERE DAMAGED (SPREAD), THE HELICOPTER ROCKED FORWARD, THE RADOME WAS DAMAGED & THE TAIL BOOM WAS SEVERED. AN INVESTIGATION REVEALED THAT THE #2 ENG, MAIN FUEL CONTROL, PN3244736-8 HAD AN AIR LEAK AT THE P3-TP-PG REGULATOR AIR DIAPHRAM WJERE A RETAINING SCREW WAS LOOSE. THE SCREW HAD BEEN SAFETY WIRED & SEALED BY THE MANUFACTURER BUT WOULD TURN SLIGHTLY WITHIN THE LIMITS OF THE WIRE. WHEN TIGHTENED, WITHIN THE LIMITS, THE AIR LEAK STOPPED.
Probable Cause:
Accident investigation:
 |
|
Sources:
NTSB FTW84FA287
Location
Revision history:
| Date/time | Contributor | Updates |
|---|---|---|
| 31-Mar-2024 16:08 | ASN Update Bot | Added |
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