ASN Wikibase Occurrence # 37209
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| Date: | Monday 8 January 1996 |
| Time: | 21:07 LT |
| Type: |  Cessna 401A |
| Owner/operator: | Pacific States Charter Service |
| Registration: | N117AC |
| MSN: | 401A0040 |
| Total airframe hrs: | 5800 hours |
| Engine model: | Continental TSIO-520-E |
| Fatalities: | Fatalities: 3 / Occupants: 4 |
| Aircraft damage: | Destroyed |
| Category: | Accident |
| Location: | Spokane, WA -
 United States of America
|
| Phase: | Approach |
| Nature: | Unknown |
| Departure airport: | Pasco, WA (KPSC) |
| (KGEG) | |
| Investigating agency: | NTSB |
| Confidence Rating: |  Accident investigation report completed and information captured |
The pilot (plt) received abbreviated weather (wx) briefing for emergency medical service (EMS)/air ambulance flight (flt). Before flt, he expressed anxiety about possible low visibility for landing & timely transport of dying patient. During ILS runway 3 approach (rwy 3 apch), aircraft (acft) remained well above the glide slope until close to the middle marker; acft's speed decreased from 153 to 100 kts, while vertical speed increased from 711'/min to about 1,250'/min descent. About 1 mi from rwy & 500' agl (in fog), acft abruptly turned left of localizer course & gradually descended with no distress call from plt. Acft hit a pole, then flew into a building & burned. Low ceiling, fog & dark night conditions prevailed. Plt (recent ex-military helicopter plt) had logged/reported 3500 hrs of flt time & about 150 hrs in multiengine airplanes, but there was evidence he lacked experience with actual instrument apchs in fixed-wing acft; he had difficulty with instrument flying during recent training & FAA check flts. No preimpact mechanical problem was found with acft/engines. No ILS anomalies were found. Flt nurse was using cellular phone, but no evidence was found of interference with acft's navigational system. Visibility & ceiling at destination were less than forecast at time of plt's preflt wx briefing. Paramedic was only survivor.
Probable Cause: failure of the pilot to follow proper IFR procedures, by failing to maintain proper alignment with the localizer course during the ILS approach and/or by failing to follow the proper missed approach procedure. Factors relating to the accident were: darkness; adverse weather conditions; and pressure on the pilot to complete the EMS flight, due to the circumstances and conditions that prevailed.
Accident investigation:
 |
|
Sources:
NTSB SEA96FA040
Location
Revision history:
| Date/time | Contributor | Updates |
|---|---|---|
| 24-Oct-2008 10:30 | ASN archive | Added |
| 07-Feb-2009 10:19 | harro | Updated |
| 21-Dec-2016 19:23 | ASN Update Bot | Updated [Time, Damage, Category, Investigating agency] |
| 09-Apr-2024 08:43 | ASN Update Bot | Updated [Time, Other fatalities, Nature, Departure airport, Destination airport, Source, Narrative, Category, Accident report] |
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