20200606011079I

Incident · No damage

FAA incident report · Cessna 172N · June 6, 2020

Date
June 6, 2020 · 07:30 local
Airport
Falcon Fld
Phase of flight
Cruise/Level Flight
Operating rules
General operating rules (Part 91)
Damage
No damage
Aircraft
N5136E
Reported as
Cessna 172N
Reported engine
Lycoming 0-320 series
People aboard
2
Fatal injuries
0
Other injuries
0

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.

Aircraft was on an instructional flight when it experienced an electrical failure. The CFI stated there was a ?loss of charging power and gps/com 1 shut down. Precautionary shut-down of electrical system due to unknown cause of failure. Called Falcon tower cab from cell phone in air and received instructions and landing clearance. Finally saw light gun signal from tower on 1 mile final.? The aircraft landed without further incident and taxied to its tie-down.

Maintenance personnel looked electrical system over and determined the alternator field wire was broken. Maintenance repaired the alternator field wire, battery was charged, engine test run and determined to be airworthy. Additional maintenance conducted was addition of two washers to the oil pressure valve. Aircraft returned to service and has experience no further electrical issues.

As the FAA filed it

AIRCRAFT WAS ON AN INSTRUCTIONAL FLIGHT WHEN IT EXPERIENCED AN ELECTRICAL FAILURE. THE CFI STATED THERE WAS A ?LOSS OF CHARGING POWER AND GPS/COM 1 SHUT DOWN. PRECAUTIONARY SHUT-DOWN OF ELECTRICAL SYSTEM DUE TO UNKNOWN CAUSE OF FAILURE. CALLED FALCON TOWER CAB FROM CELL PHONE IN AIR AND RECEIVED INSTRUCTIONS AND LANDING CLEARANCE. FINALLY SAW LIGHT GUN SIGNAL FROM TOWER ON 1 MILE FINAL.? THE AIRCRAFT LANDED WITHOUT FURTHER INCIDENT AND TAXIED TO ITS TIE-DOWN.

MAINTENANCE PERSONNEL LOOKED ELECTRICAL SYSTEM OVER AND DETERMINED THE ALTERNATOR FIELD WIRE WAS BROKEN. MAINTENANCE REPAIRED THE ALTERNATOR FIELD WIRE, BATTERY WAS CHARGED, ENGINE TEST RUN AND DETERMINED TO BE AIRWORTHY. ADDITIONAL MAINTENANCE CONDUCTED WAS ADDITION OF TWO WASHERS TO THE OIL PRESSURE VALVE. AIRCRAFT RETURNED TO SERVICE AND HAS EXPERIENCE NO FURTHER ELECTRICAL ISSUES.

Other reports on N5136E · 1

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