N525B
Registered owner: 525 AVIATION LLC, DE (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.
5 reports on file, 2018-08-09 – 2026-04-23.
Part: FDU — FAULTED (NR 1 ENGINE) · airframe 6,720 hrs · 4,839 cycles
LEFT ENGINE SHUT DOWN ON ITS OWN AS WE PULLED POWER BACK FOR INITIAL DESCENT FROM FL430. FIRST INDICATION WAS N1 READING ZERO. NEXT INDICATION WAS A GENERATOR FAIL, WARNING LIGHT. OIL PRESSURE WAS NOW AT 9 PSI. NO VIBRATION NOTED. SUCCESSFULLY RESTARTED ENGINE USING STARTER ASSIST PROCEDURE PER SOP. EXTERIOR INSPECTION AFTER LANDING SHOWED NORMAL OIL LEVEL AND NO OIL BYPASS INDICATION. DOWNLOADED ENGINE ECTM DATA, SENT FOR ANALYSIS. WE WERE RECOMMENDED TO REPLACE THE FDU'S. THIS COINCIDES WITH WISB73-1040R3 - FUEL DELIVERY UNIT REPLACEMENT. WE COMPLIED WITH THE RECOMMENDED CHANGES AND OPERATIONAL CHECKS WERE GOOD. NO FURTHER ISSUES NOTED.
Part: CLAMP — DETACHED (ZONE 400) · airframe 6,077 hrs · 4,414 cycles
AIRCRAFT EXPERIENCED OVER TEMP AT START UP AND ABORTED TAKEOFF INSPECTED AIRCRAFT AFTER OVER TEMP CONDITION AND NOTICED R/H ENGINE BLEED LINE CLAMP SITTING IN COWLING .REVIEWED RECORDS AND FOUND THAT TEXTRON SMF PERFORMED THE CHECK 1 INSPECTION ON 5/6/2025.
Part: CABLE — UNKNOWN (DOOR) · airframe 5,084 hrs · 3,728 cycles
SKY STEP STC SA04015NY . DOOR CABLES FAIL AT AN EXCESSIVE RATE MANUFACTURER PUBLISHED SERVICE LETTER SL-SI610-100 DATED 03/14/2023 TO CORRECT ISSUE AND REPLACED CABLES AT NO CHARGE. BUT CABLES ARE STILL BREAKING STC WAS INSTALLED ON 2/11/2022 AND THE CABLE HAS BEEN REPLACED 4 TIMES
Part: GASKET — FAILED (BLEED AIR SYS) · airframe 3,716 hrs · 2,771 cycles
BAGGAGE SMOKE ANNUNCIATOR IN FLIGHT. MAINTENANCE FOUND BLEED LEAK TO BE CAUSING THE CARGO BAY SMOKE DETECTOR MESSAGE.
Part: WARNING MESSAGE — ILLUMINATED (HYD POWER) · airframe 2,839 hrs · 2,043 cycles
DURING CLIMB OUT THRU FL 200, CREW RECEIVED A HYD PWR ON ANNUNCIATOR. CREW LEVELED AT FL 290 AND RAN QRH. CREW WAS UNABLE TO REMEDY THE MALFUNCTION. DECLARED AN EMERGENCY.