# Accident 19961029036059A: Amtr ROTORWAYEXEC, Haines, AK, October 29, 1996

- Type: FAA accident report (Accident/Incident Data System), as reported
- Date: October 29, 1996, 07:37 local time
- Place: Haines, AK
- Damage: Substantial damage
- Phase of flight: Fcd/Prec Ldg From Cruise
- Operating rules: General operating rules (Part 91)
- Location: 59.1598° N, 135.8606° W: From the FAA, an estimate near the named town, within about 3 miles
- Nearby events: https://openairdocs.org/map.md?lat=59.1598&lon=-135.8606&mi=10
- Aircraft: N711KN, a cancelled registration (https://openairdocs.org/deregistered/N711KN-1997-05-29) (OpenAirDocs)
- Registry model: Seright Ken ROTORWAY EXEC 162F (registry code 05628RC, https://openairdocs.org/model/seright-ken-rotorway-exec-162f) (OpenAirDocs)
- Reported make and model: AMTR ROTORWAYEXEC
- Reported engine: AMTRRW ROTWY162
- People aboard: 1
- Fatal injuries: 0
- Pilot flight hours: 340 total, 47 in this make and model, 120 in the last 90 days
- NTSB investigation: [NTSB ANC97LA005](https://openairdocs.org/ntsb/ANC97LA005) (OpenAirDocs)
- FAA source: FAA Aviation Safety Information Portal (https://asip.faa.gov/)
- Page: https://openairdocs.org/incident/19961029036059A

## Narrative

As the FAA filed it, in capitals; the FAA replaces private details with ^PRIVACY DATA OMITTED^.

(.4)THE CERTIFICATED PRIVATE AIRPLANE PILOT, THE SOLE OCCUPANT & HOLDER OF A SOLO ENDORSEMENT FOR HELICOPTERS, WAS BEGINNING A CROSS-COUNTRY FLIGHT IN AN EXPERIMENTAL HOMEBUILT HELICOPTER. AFTER TAKEOFF, HE HEARD A SHARP BANG & OBSERVED SMOKE IN THE COCKPIT. HE DECLARED AN EMERGENCY, ENTERED AN AUTOROTATION, & SELECTED AN EMERGENCY LANDING AREA ON A BEACH, BUT THE AREA WAS COVERED WITH LARGE BOULDERS. DURING THE FLARE & LANDING, THE ENGINE RESPONDED MOMENTARILY, WHEN THE PILOT RAISED THE COLLECTIVE PITCH CONTROL, BUT THE ENGINE DID NOT HAVE SUFFICIENT POWER TO HOVER. THE HELICOPTER SUSTAINED DAMAGE TO THE LANDING GEAR SKIDS, THE TAIL ROTOR, & THE TAIL BOOM STRUCTURE ADJACENT TO THE TAIL ROTOR ASSEMBLY. AN EXAM REVEALED THE ENGINE COMPARTMENT WAS COATED WITH ENGINE COOLANT. THE AIR INTAKE FILTER WAS SATURATED WITH COOLANT, & 1 ELECTRONIC IGNITION SYSTEM WAS RENDERED INOPERATIVE FROM COOLANT SATURATION. A PRESSURE TEST OF THE COOLANT SYSTEM REVEALED A LEAK & SPRAYING OF COOLANT FROM A COOLANT PUMP MANIFOLD FITTING. THE PILOT INDICATED THE FITTING HAD A RUBBER HOSE ATTACHED BY A CLAMP, & COOLANT WAS LEAKING AT THE ATTACH POINT. ALSO, HE SAID THE HOSE HAD BEEN INSTALLED WITH EXCESSIVE TENSION AT THE FITTING DUE TO IT BEING 1/2 INCH TOO SHORT. HE HAD ACCURED 47 HRS IN HELICOPTERS.

## The NTSB's investigation of this event (1)

From the NTSB's public API. Aircraft are matched to registry aircraft by N-number and event date, checked against the reported serial number, make and model; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model.

- [NTSB ANC97LA005](https://openairdocs.org/ntsb/ANC97LA005), Oct 29, 1996: Ken Seright Rotorway Exec 162F (N711KN), Haines, AK, substantial damage. Probable cause: a leaking coolant hose that saturated the induction air filter and one electronic ignition system with coolant. Unsuitable terrain for a forced landing was a related factor in the accident.

From the FAA Accident/Incident Data System. Reports are matched to registry aircraft by N-number and event date, checked against the reported make and model; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model. For accidents, the NTSB's own investigation is the fuller record.

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