N730TS
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
FOUND B-NUT LOOSE ON ENGINE THAT ATTACHES RETURN OIL LINE TO RESERVOIR. LINE DOES NOT HAVE ANY SAFETYING PROVISION. METAL FITTING ASSY WAS FOUND LOOSE NOT HOSE.
FLYING MAIL RUN, THE MAG PLUG NR 2 LIGHT ILLUMINATED. ATTEMPTED TO PULSE THE CHIP WITHOUT SUCCESS. NOTICED NR 2 ENG TOT RISING, MAX OBSERVED 748 DEGREES C. BROUGHT NR 2 ENG THROTTLE TO IDLE & MONITORED ENG OIL PRESS WHICH WAS DECREASING. AS THE NR 2 ENG OIL PRESS REACHED THE BOTTOM OF THE YELLOW RANGE, NR 2 ENG WAS SHUT DOWN BY THE PILOT. SUCCESSFUL RUN ON LANDING WAS ACCOMPLISHED WITH NO FURTHER INCIDENT. UPON INVESTIGATION, RESERVOIR OIL LINE FOUND LOOSE.
WHILE FLYING A DISTANCE OF 100NM, FOR THE COMPLETION OF THE CONTRACT FLIGHT I HAD TWO COMPRESSOR STALLS. THE FIRST HAPPENED AT A CONSTANT POWER SETTING OF 80% TORQUE, 1000' PA, CAVU WITH WINDS 150/10 KTS, A HEADWIND. HEARD A LOUD BANG FOLLOWED BY YAWING OF THE ACFT. LOWERED THE COLLECTIVE & THE STALL CLEARED, EASED POWER BACK IN TO 70% TORQUE, HAD FULL ENG POWER WITH NO STALL INDICATIONS & CONTINUED. WAS UNABLE TO CONFIRM WHICH ENG HAD THE COMPRESSOR STALL WITH THE INSTRUMENTS, BUT THE SOUND CAME FROM DIRECTLY BEHIND ME ON THE STARBOARD SIDE OF THE ACFT. THE SETTING STAYED AT 70% UNTIL LOWERING THE POWER FOR A NORMAL APPROACH INTO AIRPORT. UPON LOWERING THE COLLECTIVE ANOTHER STALL HAPPENED AT APPROX 50% TORGUE, SAME LOUD BANG FROM DIRECTLY BEHIND ME ON THE RT SIDE & YAWING OF THE ACFT. CONTINUED LOWERING THE COLLECTIVE & THE STALL AGAIN CLEARED. I WAS AT 500' PA & WAS LANDING WITH A QUARTERING HEADWIND. WAS ON PROFILE & CONTINUED TO AN UNEVENTFUL LANDING NEXT TO THE HANGAR. POST FLIGHT DID NOT REVEAL ANY INDICATION FOR THE COMPRESSOR STALLS. I NOTIFIED THE DO & ANC BASE MX PERSONNEL UPON LANDING. I HAVE WRITTEN THE EVENT UP IN THE MX LOG BOOK & THE ACFT IS AOG AWAITING MX PERSONNEL TO ARRIVE AT BASE. THOUGH UNABLE TO CONFIRM VIA INSTRUMENTS, I AM FAIRLY CERTAIN IT IS THE NR 2 ENG.
UPON INSPECTION OF VENTRAL TANK AFTER REMOVAL FOR AIRCRAFT, SEVERAL AREAS OF SIDEWALLS WERE FOUND SCORED AND CHAFED IN RADIUS. SAID AREAS APPEAR TO HAVE BEEN SCORED DURING PREVIOUS REMOVAL PROCEDURES USING SHARP INSTRUMENT TO CUT BEAD SEALING. THE SIDE WALLS HAVE BEEN DEEMED UNAIRWORTHY BY THE RAYTHEON REPAIR/DESIGN OFFICE AND ARE BEING REPLACED. PROPER TECHNIQUES USING APPROVED TOOLING TO REMOVE SEALANT RECOMMENDED.