# Accident 19990621007399A: Amtr EXEC90, Tampa, FL, June 21, 1999

- Type: FAA accident report (Accident/Incident Data System), as reported
- Date: June 21, 1999, 19:30 local time
- Place: Tampa, FL
- Airport: Topp Of Tampa Airport
- Damage: Substantial damage
- Phase of flight: Pwr Off Vert Land/Autorotate
- Operating rules: General operating rules (Part 91)
- Location: 28.1303° N, 82.4601° W: From the FAA, an estimate near the named town, within about 3 miles
- Nearby events: https://openairdocs.org/map.md?lat=28.1303&lon=-82.4601&mi=10
- Aircraft: N4359N, a cancelled registration (https://openairdocs.org/deregistered/N4359N-2008-01-11) (OpenAirDocs)
- Registry model: Callahan Robert R R W EXEC 90 (registry code 13017NK, https://openairdocs.org/model/callahan-robert-r-r-w-exec-90) (OpenAirDocs)
- Registry engine: Rotorway RW-100 series (registry code 55001, https://openairdocs.org/engine/rotorway-rw-100-series) (OpenAirDocs)
- Reported make and model: AMTR EXEC90
- Reported engine: AMTRRW ROTWY162
- People aboard: 1
- Fatal injuries: 0
- Pilot flight hours: 25 in this make and model, 16 in the last 90 days
- NTSB investigation: [NTSB MIA99LA186](https://openairdocs.org/ntsb/MIA99LA186) (OpenAirDocs)
- FAA source: FAA Aviation Safety Information Portal (https://asip.faa.gov/)
- Page: https://openairdocs.org/incident/19990621007399A

## Narrative

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

EXPERIMENTAL RW EXEC 90 HELICOPTER EXPERIENCED ENGINE FAILURE AT 300 FEET AGL, AND THE PILOT AUTO-ROTATED THE ACFT TO THE GROUND, OTHER CIRCUMSTANCES ARE UNKNOWN. (.4)THE NON-CERTIFICATED PILOT PREFLIGHTED THE HELICOPTER AND AFTER ENGINE START, ONE OF THE MAGNETOS WAS INTERMITTENT. MANIPULATION OF THE MAGNETO SWITCH CORRECTED THE PROBLEM; THE FLIGHT THEN DEPARTED AND FLEW ABOUT 5 MILES AWAY.  WHILE RETURNING, THE NON-ROTORCRAFT RATED PASSENGER BEGAN FLYING THE HELICOPTER AND WHILE DESCENDING OVER THE AIRPORT ABOUT 300 FEET, THE ENGINE QUIT.  THE PASSENGER LOWERED FULL COLLECTIVE, MAINTAINED 60 MPH, THEN WHEN THE HELICOPTER WAS 20 FEET AGL, HE FLARED USING A 45 DEGREE FLARE ANGLE.  THE TAILBOOM CONTACTED THE GROUND FIRST, FOLLOWED BY THE MAIN ROTOR BLADES CONTACTING THE TAILBOOM.  THE HELICOPTER THEN LANDED HARD.  THE PASSENGER STATED AFTER TAKEOFF, THE PILOT PERFORMED 3 OR 4 SIMULATED LOSS OF ENGINE POWER WITH POWER RECOVERIES AND WHILE PERFORMING ANOTHER, THE ENGINE QUIT AT 100-150 FEET.  HE TOOK THE CONTROLS FROM THE PILOT AND WITH THE MAIN ROTOR TACHOMETER INDICATING 0, PERFORMED AN AUTOROTATIVE LANDING BUT THE HELICO                                                              PTER LANDED HARD. THE ENGINE WAS STARTED POSTACCIDENT AND FOUND NO EVIDNECE OF PREIMPACT FAILURE OF MALFUNCTION.  THE PILOT STATED THAT HE FOUND CORROSION AT THE WIRING CONNECTIONS AT EACH IGNITION PACK.  PREFLIGHT EXAMINATION OF THE INGNITIONS PACKS IT REQUIRED.                                    (-23)SEE INSPECTOR STATEMENT.

## 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 MIA99LA186](https://openairdocs.org/ntsb/MIA99LA186), Jun 21, 1999: Robert R. Callahan Exec 90 (N4359N), Lutz, FL, substantial damage. Probable cause: The excessive cyclic input by the non-qualified passenger during the autorotative landing following a reported loss of engine power. A factor in the accident was the inadequate preflight of the…

## Other reports on N4359N (1)

Matched to the same aircraft by N-number and date.

- [Accident 20050704018839A](https://openairdocs.org/incident/20050704018839A), Jul 4, 2005: Amtr EXEC90 (N4359N), Weston, WV, Destroyed. (-23) The student pilot was performing power recovery autorotation maneuvers and had accomplished several successful maneuvers on the day of the accident. At…

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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