N733A
Registered owner: HUMANA INC, KY (owner ≠ operator)
Operators of this aircraft
Who operated this tail, and how firmly we know it.
No operator established for this aircraft.
Accident & incident history
No NTSB accidents or incidents on file for this aircraft.
Maintenance disclosures
Service Difficulty Reports filed with the FAA for this airframe. Filing is largely voluntary — the number of reports is not a measure of reliability. To verify a report, search its control number at the FAA SDRS site.
6 reports on file, 2000-03-13 – 2017-05-11.
Part: PCB — FAILED · airframe 2,181 hrs · 1,240 cycles
CABIN LIGHTS CYCLE ON AND OFF APPROXIMATELY 5 MINUTE CYCLES. COMPUTER FAULT CODE 601 FOR CABIN TEMP SELECTOR FAILURE. REMOVED AND REPLACED PRINTED CIRCUIT CARD 421JE. FAULTY CARD CAUSED CABIN LOAD SHED THAT CAUSED BOTH PROBLEMS.
Part: CONTROL BOX — FAILED (LANDING LIGHT) · airframe 2,000 hrs · 1,126 cycles
DURING POST FLIGHT, DISCOVERED RIGHT LANDING LIGHT ILLUMINATED WITH THE SWITCH IN THE OFF POSITION. REPLACED THE LANDING LIGHT PULSE CONTROL BOX
Part: VALVE — INTERMITTENT (HP) · airframe 2,113 hrs · 1,195 cycles
WING LOW PRESSURE LIGHT ILLUMINATED INTERMITTENTLY AT LOW POWER SETTING. REMOVED AND REPLACED HP VALVE NR 2.
Part: SWITCH — CORRODED (WARNING SYSTEM)
DURING POSTFLIGHT INSPECTION FOUND THAT THE CABIN ALT WARNING HORN WOULD NOT SILENCE. LEG DOWNLOCK MICROSWITCH (JM)P/N 9006EN42 FOUND TO BE LEAKING 4 VOLTS FROM PIN 4 TO PIN 5 DUE TO CORROSION . 4 VOLTS WAS NOT ENOUGH TO PULL IN THE COIL ON RELAY (AD) BUT IT WAS ENOUGH TO HOLD THE COIL AFTER YOU TESTED THE HORN. RELAY (AD) SERVES THREE SYSTEMS, CABIN ALTITUDE, GEAR WARNING AND CONFIGURATION IN ORDER TO BLOW A WARNING HORN. INSTALLED ONE NEW SWITCH P/N 9006EN42 AND CUT OPEN THE OLD SWITCH AND FOUND A TINY BIT OF CORROSION BETWEEN PIN 4 AND 5. PIN 4 HAS 28 VOLTS ALL THE TIME AND PIN 5 IS ONE OF THREE WIRES THAT SERVES THE COIL ON RELAY (AD)
Part: NUT — MISMANUFACTURED (WHEEL)
WHEEL LOCK NUT (P/N FN22A-524) WAS BEING INSTALLED TO COMPLY WITH SB 32-1374 AND WAS FOUND TO HAVE ZERO RUN ON TORQUE. THIS IS A NEW PART AND HAS NEVER BEEN INSTALLED. ONLY ONE OF 24 BOUGHT FROM MFG THAT WAS BAD. THIS BOLT/NUT COMBINATION IS WHAT HOLDS THE (2) HALVES OF THE WHEEL TOGETHER.
Part: WIRE — DAMAGED (CABIN) · airframe 27,845 hrs · 2,818 cycles
SECTION OF TRACK LIGHTING JUST AFT OF OVERWING EMERGENCY EXITS INOP. FOUND RIVET DEBRIS IN TRACK LIGHTING CHANNEL THAT DAMAGED THE TRACK LIGHTING ELECTRICAL CABLE TRACK ASSY. REPLACED SAME AND ASSOCIATED PARTS AND OPERATION CHECKED NORMAL. SOURCE OR HOW LONG RIVET DEBRIS WAS PRESENT IS UNKNOWN. IT WAS TRAPPED UNDER TRACK LIGHTING STRIP AND WAS NOT VISIBLE UNTIL SAME REMOVED.