N977CB
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.
3 reports on file, 2018-02-21 – 2018-10-14.
Part: CONTROLLER — MALFUNCTIONED (CABIN PRESSURE) · airframe 8,803 hrs · 4,640 cycles
AIRCRAFT PRESSURIZATION SYSTEM WENT INTO MANUAL MODE AND INTERMITTENT CASS MESSAGES APPEARED AND CLEARED WHILE IN CRUISE AND FINAL DESCENT. OBTAINED A SPECIAL FLIGHT PERMIT AND RELOCATED THE AIRCRAFT TO KPCD FOR MAINTENANCE. COMPLIED WITH ACSB BUS SWEEP AND TESTING, ALL AFFECTED SYSTEMS OPERATIONAL CHECKS GOOD. PERFORMED MAINTENANCE CHECK FLIGHT AND PRESSURIZATION SYSTEM FAILED AGAIN. REPLACED CABIN PRESSURE CONTROLLER / SELECTOR WITH A REPAIRED UNIT FROM HONEYWELL CRS# HZ3R571L. REPLACED PRESSURIZATION SYSTEM RELAY SWITCH P/N 131162-1-2, INSPECTED CONDITION FROM WESTSTAR AVIATION. WORK PERFORMED IAW GIV AMM 21-02-02 AND 21-02-06. OPERATIONAL CHECKS NORMAL. PERFORMED OPERATIONAL CHECK FLIGHT, NORMAL.
Part: TRANSDUCER — MALFUNCTIONED (CABIN PRESSURE) · airframe 8,752 hrs · 4,621 cycles
DURING CLIMB OUT AT FLT LEVEL 120, THE CABIN EXPERIENCED UNCONTROLLED PRESSURIZATION RESULTING IN THE CREW PERFORMING AN EMERGENCY DECENT. UPON SLOWING AIRCRAFT AND GEAR EXTENSION NORMAL PRESSURIZATION CONTROL WAS REGAINED. INSTALLED CABIN DIFFERENTIAL PRESSURE TRANSDUCER IN REPAIRED CONDITION. INSTALLED THE CABIN PRESSURE SELECTOR IAW AMM 21-02-03. OPERATIONAL CHECKS GOOD. NORMAL PRESSURIZATION WAS REGAINED WHEN AIRCRAFT PRESSURIZATION SYSTEM WAS CONFIGURED FOR LANDING IN MANUAL MODE, NOT WHEN LANDING GEAR WAS SELECTED.
Part: CONTROLLER — FAILED (CABIN PRESSURE) · airframe 8,245 hrs · 4,495 cycles
DURING CLIMB OUT, AUTOMATIC PRESSURE CONTROL FAILED IN FLIGHT, CAUSING AN OVER-PRESSURIZATION OF CABIN. FLT CREW RETURNED TO DEPARTURE. TROUBLESHOT SYSTEM TO A FAILED CABIN PRESSURIZATION CONTROLLER. INSTALLED A REPAIRED UNIT. PERFORMED IN ACCORDANCE WITH GIV AMM 21-02-02.