ASN Wikibase Occurrence # 372359
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| Date: | Sunday 23 August 1987 |
| Time: | 08:38 LT |
| Type: |  Bell 206B |
| Owner/operator: | Kenai Air Of Hawaii |
| Registration: | N2777R |
| MSN: | 2813 |
| Year of manufacture: | 1979 |
| Total airframe hrs: | 2633 hours |
| Engine model: | Allison 250-C20B |
| Fatalities: | Fatalities: 0 / Occupants: 5 |
| Aircraft damage: | Substantial |
| Category: | Accident |
| Location: | Kailua-kona, HI -
 United States of America
|
| Phase: | Manoeuvring (airshow, firefighting, ag.ops.) |
| Nature: | Unknown |
| Departure airport: | Kailua-kona, HI (KOA) |
| (KKOA) | |
| Investigating agency: | NTSB |
| Confidence Rating: |  Accident investigation report completed and information captured |
AS THE HELICOPTER WAS CLIMBING OVER RISING TERRAIN AT 300' TO 400' AGL, THE PLT NOTED ALTIMETER & AIRSPEED INDCNS OF 8700' & 60 MPH. AFTER CLIMBING AN ADNL 2 MIN TO APRX 10,000' (12,000' DENSITY ALT), HE NOTICED THE ROTOR RPM WAS BLEEDING OFF. HE MADE A 180 DEG RGT TURN & HEADED DOWN SLOPE, BUT THE HELICOPTER 'CRASH LANDED' AT THE 8500' LEVEL. THE PLT RPRTD THE WINDS WERE FROM THE NW AT 5 KTS & THE TEMP WAS 60 DEG F. APRX 26 MI NW AT KAILUA-KONA, THE 1750 WIND WAS FROM 030 DEG AT 7 KTS. ACCORDING TO WT & BALANCE RECORDS, THE ACFT WAS LOADED TO 3171 LBS (28 LBS UNDER MAX WT LMT).CALCULATIONS SHOWED THE HELICOPTER WOULD HAVE HAD TO CLIMB AT A RATE OF 616'/MIN TO MAINT A 60 MPH CLIMB OVER THE TRRN. ACCORDING TO THE FLT MANUAL, AT 3171 LBS, THE HELICOPTER'S MAX RATE OF CLIMB AT 10,000' WITH 60 DEG AIR TEMP WOULD HAVE BEEN 450'/MIN. ALSO, THE MANUAL SHOWED THE HELICOPTER WAS NOT ABLE TO HOVER OUT OF GROUND EFFECT AT AN ALT & TEMP OF 10,000' & 60 DEG, WHEN THE GROSS WT WAS AT OR ABOVE 2800 LBS. NO PREIMPACT MECH PROBLEMS WERE FND.
Probable Cause:
Accident investigation:
 |
|
Sources:
NTSB LAX87LA310
History of this aircraft
Other occurrences involving this aircraft
| 24 November 2012 | YV2527 | Private | 0 | San Jose de Guanipa |  |
w/o |
Location
Revision history:
| Date/time | Contributor | Updates |
|---|---|---|
| 26-Mar-2024 16:18 | ASN Update Bot | Added |
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