ASN Wikibase Occurrence # 226463
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| Date: | Saturday 2 May 2015 |
| Time: | 10:20 LT |
| Type: |  Bell 407 |
| Owner/operator: | Heli Solutions |
| Registration: | P2-HSL |
| MSN: | 53726 |
| Year of manufacture: | 2006 |
| Fatalities: | Fatalities: 0 / Occupants: 1 |
| Aircraft damage: | Substantial |
| Category: | Serious incident |
| Location: | near Mount Strong, Chapman Range, Morobe -
 Papua New Guinea
|
| Phase: | Manoeuvring (airshow, firefighting, ag.ops.) |
| Nature: | External load operation |
| Departure airport: | |
| Investigating agency: | AIC PNG |
| Confidence Rating: |  Accident investigation report completed and information captured |
The Bell 407 helicopter was in the circuit area, at about 11,700 ft, at Mt. Strong (07°58’10” S, 146°56’40” E), Morobe Province. During the approach to the helipad, with an external load of two diesel fuel drums (about 230 kg), the helicopter unexpectedly entered a sudden un-commanded high rate of descent. The pilot stated that the helicopter’s speed was around 30 kts when he experienced the uncommanded descent.
The pilot had completed a flight carrying passengers to Mt. Strong immediately prior to the incident flight. According to the pilot, the conditions appeared suitable for the external load flight. He stated that when the helicopter started to descend his first reaction was to raise the collective to try an arrest the descent, but that action had no effect so he immediately jettisoned the load. The pilot reported that following the load release, he saw a caution ‘Check Instrument’ light illuminated on the annunciator panel and noticed an ‘E’ light (signifying a gas producer (Ng) turbine exceedance).
The pilot stated that he landed the helicopter safely at Mt. Strong and performed a visual external check of the helicopter with the engine running and rotors turning. After securing the external load equipment, the pilot flew the helicopter to Bereina and refuelled it with the engine running and rotors turning. The pilot picked up one of the loadmasters and positioned the helicopter from Bereina to the operator’s maintenance facility at Jacksons Airport, Port Moresby. Following engine shut down, the Ng exceedance was confirmed by engineering personnel.
Accident investigation:
 |
|
Sources:
PNG AIC
Revision history:
| Date/time | Contributor | Updates |
|---|---|---|
| 23-Jun-2019 07:52 | Petropavlovsk | Added |
| 23-Jun-2019 07:52 | harro | Updated [Aircraft type, Total fatalities, Other fatalities] |
| 28-Jun-2023 05:00 | Ron Averes | Updated [[Aircraft type, Total fatalities, Other fatalities]] |
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