N354LL
Registered owner: CRITICAL CARE SERVICES INC DBA, MN (owner ≠ operator)
Operators of this aircraft
Who operated this tail, and how firmly we know it.
| Operator | Role | Period | Basis |
|---|---|---|---|
| CRITICAL CARE SERVICES INC (37CA) | Certificate holder | — | Matched by certificate designator |
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.
8 reports on file, 2015-07-09 – 2026-02-21.
Part: GUIDE — DEPARTED (ZONE 200) · airframe 5,671 hrs · 15,906 cycles
AFTER DEPARTING ASHLAND HOSPITAL IN SUPERIOR WI, THE R/H CABIN WINDOW SLIDER DEPARTED THE AIRCRAFT.
Part: TACH GENERATOR — DEFECTIVE (FWD ENGINE) · airframe 5,241 hrs · 14,699 cycles
N1 TACHOMETER GENERATOR ERRATIC READINGS DURING START UP CAUSING A MIS-COMPARE P CAUTION MESSAGE.
Part: PRESSURE SWITCH — FAILED (M/R XMISSION) · airframe 2,363 hrs · 7,267 cycles
SHORTLY AFTER DEPARTURE PILOT RECEIVED "XMSN OIL PRESSURE" WARNING LIGHT ALONG WITH AN INCREASE IN INDICATED PRESSURE. PERFORMED PRECAUTIONARY LANDING AND MAINTENANCE REPLACED THE TRANSMISSION OIL PRESSURE SWITCH. TRANSMISSION OIL PRESSURE RETURNED TO NORMAL AND WARNING LIGHT DID NOT COME ON. AIRCRAFT WAS REPOSITIONED TO MAINTENANCE FACILITY. TRANSMISSION OIL FILTER WAS PULLED AND NON-FERROUS METALLIC CHIPS WERE FOUND.
Part: MOUNT — CRACKED (M/R TRANSMISSION) · airframe 1,671 hrs · 5,326 cycles
DURING MAIN ROTOR TRANSMISSION CHANGE, FOUND THE LT AND RT AIRFRAME TRANSMISSION DECK FITTINGS CRACKED.
Part: FRAME — CHAFED (FRM 5) · airframe 4,658 hrs · 14,749 cycles
FOUND EVIDENCE OF CHAFING ON LOWER EDGE OF FRAME 5, X 4692, Y 2560, Z 317, DURING PRE CLOSE INSPECTION OF AVIONIC BAY. NOTE THAT CURRENT HARDWARE IS IN LINE WITH THE GAP IN-BETWEEN FRAME 5 AND MED WALL AND ONLY CONTACTS IF TRIM IS DEFLECTED BACK WHEN PUSHING ON SNAP OR MED MOUNT INSTALL.
Part: RETAINER — CRACKED (FUSELAGE) · airframe 1,447 hrs · 4,647 cycles
FOUND 2 EACH CRACKS AT STA 2049.5, BL 480 LT AND BL 480 RT. RETAINER AND 2 EACH CRACKS AT FASTENER STA 2049.5 LEFT/RIGHT WL 1150.0, AND 1 CRACK RIGHT HAND DOOR POST AFT EDGE STA 2049.5 EXTENDING FROM WL 1400.0 TO 1402.0, CRACK IS APPROXIMATELY 1.5 INCHES LONG.
Part: BEARING — CRACKED (TAIL ROTOR) · airframe 573 hrs · 1,791 cycles
DURING A0521 NT, 100 HR TAIL ROTOR INSPECTION, WAS REMOVING THE TAIL ROTOR CROSS HEAD ASSEMBLY & FOUND THE BLADE END PC LINK BEARING CRACKED WITH A CHUNK MISSING FROM THE FLANGE AREA OF THE BEARING, THE SPHERICAL SURFACE WAS INTACT. R & R PC LINK. EXCESSIVE TORQUE WAS NOT NOTED AT REMOVAL.
Part: COWLING — CRACKED (ZONE 200) · airframe 482 hrs · 1,481 cycles
FOUND CRACKED ENG COWLING ON PREFLIGHT, PORT SIDE OF FWD ENG COWLING AFT EDGE OF ACCESS DOOR OPENING. VERTICAL STIFFENER ALSO FOUND CRACKED WHEN INVESTIGATING FURTHER.