20131227025649I

Incident · No damage

FAA incident report · Piper PA-28RT-201T · Chesterfield, MO · December 27, 2013

Date
December 27, 2013 · 10:24 local
Place
Chesterfield, MO
Phase of flight
Cruise/Level Flight
Operating rules
General operating rules (Part 91)
Damage
No damage
Aircraft
N8332Y
Reported as
Piper PA-28RT-201T
Reported engine
Continental TSIO-360FB1
People aboard
1
Fatal injuries
0
Other injuries
0
Pilot’s certificate
Private pilot
Pilot’s flight hours
950 total850 in this make and model15 in the last 90 days

From the FAA’s Accident/Incident Data System (AIDS), through its Aviation Safety Information Portal, as reported. The NTSB investigates accidents separately, and its record of an accident is the fuller one. The aircraft is matched to the registry 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.

What happened

The FAA’s narrative, in sentence case. The FAA writes it in capitals and removes private details.

During cruise flight on December 27, 2010, the aircraft lost electrical power. An emergency was declared due to inability to verify that landing gear was down-and-locked following emergency procedures used to extend them. Communication was made with ATC by way of a handheld VHF radio. An uneventful landing was performed with emergency equipment on-scene. Follow-on investigation yielded that the field wire terminal which fed the alternator from the voltage regulator had broken at the voltage regulator termination point. The alternator had been installed in March of 2002 (>11 years prior) and the 12 inch feeder wire may have broken due to many years of engine induced vibration. Without this field input, the alternator failed to charge the battery and eventually all electrical systems failed.

As the FAA filed it

DURING CRUISE FLIGHT ON DECEMBER 27, 2010, THE AIRCRAFT LOST ELECTRICAL POWER. AN EMERGENCY WAS DECLARED DUE TO INABILITY TO VERIFY THAT LANDING GEAR WAS DOWN-AND-LOCKED FOLLOWING EMERGENCY PROCEDURES USED TO EXTEND THEM. COMMUNICATION WAS MADE WITH ATC BY WAY OF A HANDHELD VHF RADIO. AN UNEVENTFUL LANDING WAS PERFORMED WITH EMERGENCY EQUIPMENT ON-SCENE. FOLLOW-ON INVESTIGATION YIELDED THAT THE FIELD WIRE TERMINAL WHICH FED THE ALTERNATOR FROM THE VOLTAGE REGULATOR HAD BROKEN AT THE VOLTAGE REGULATOR TERMINATION POINT. THE ALTERNATOR HAD BEEN INSTALLED IN MARCH OF 2002 (>11 YEARS PRIOR) AND THE 12 INCH FEEDER WIRE MAY HAVE BROKEN DUE TO MANY YEARS OF ENGINE INDUCED VIBRATION. WITHOUT THIS FIELD INPUT, THE ALTERNATOR FAILED TO CHARGE THE BATTERY AND EVENTUALLY ALL ELECTRICAL SYSTEMS FAILED.