What happened
The FAA’s narrative, in sentence case. The FAA writes it in capitals and removes private details.
The acft landed with the ldg gear partially extended after a nose gear hydraulic hose failed in flight. The plt reported that he had heard a soft bang and felt a bump during cruise flt, and briefly noticed the smell of hydraulic fluid. He also noticed a drop in airspeed, then observed the MLG hanging out of the wheel wells (as viewed using an externally mounted mirror located on the wing). After analyzing the problem and unsuccessfully attempting to lower the gear manually per 177RG POH procedures, the plt declared an emergency and landed at mlb. The acft sustained minor prop & skin damage during the ldg. Subsequent examination of the acft revealed that NLG "up" hydraulic hose had failed and separated at the actuator attach fitting, resulting in a loss of system pressure and allowing the ldg gear to free fall into a partially extended position. The failed hose had a deteriorated and cracked exterior cover. Remaining fragments were found to be hardened and brittle. The part number of the hose was determined to be an S2178-4 series based on visible numbers found on the remaining fragments. Cessna service bulletin # seb 92-8 issued in 1992 mandated replacement of these p/n hoses due for reasons that were not clearly specified in the bulletin. Review of available acft mx records revealed that the most recent reference to replacement of the nose gear hydraulic actuator lines was dated 11/18/1983. This was accomplished after a previous ldg gear hyd hose failure on 9/27/1983 (the FAA incident summary for that mishap did not specify which hose failed). The last recorded acft annual inspection was completed by an IA on 01/01/2011 at 5,515.9 hrs ttis. The acft ttis at the time of this incident on 4/13/2011 was 5,531.7 hrs, which is 15.8 operating hrs, or 3 months 13 days, after the last annual was completed.
As the FAA filed it
THE ACFT LANDED WITH THE LDG GEAR PARTIALLY EXTENDED AFTER A NOSE GEAR HYDRAULIC HOSE FAILED IN FLIGHT. THE PLT REPORTED THAT HE HAD HEARD A SOFT BANG AND FELT A BUMP DURING CRUISE FLT, AND BRIEFLY NOTICED THE SMELL OF HYDRAULIC FLUID. HE ALSO NOTICED A DROP IN AIRSPEED, THEN OBSERVED THE MLG HANGING OUT OF THE WHEEL WELLS (AS VIEWED USING AN EXTERNALLY MOUNTED MIRROR LOCATED ON THE WING). AFTER ANALYZING THE PROBLEM AND UNSUCCESSFULLY ATTEMPTING TO LOWER THE GEAR MANUALLY PER 177RG POH PROCEDURES, THE PLT DECLARED AN EMERGENCY AND LANDED AT MLB. THE ACFT SUSTAINED MINOR PROP & SKIN DAMAGE DURING THE LDG.SUBSEQUENT EXAMINATION OF THE ACFT REVEALED THAT NLG "UP" HYDRAULIC HOSE HAD FAILED AND SEPARATED AT THE ACTUATOR ATTACH FITTING, RESULTING IN A LOSS OF SYSTEM PRESSURE AND ALLOWING THE LDG GEAR TO FREE FALL INTO A PARTIALLY EXTENDED POSITION. THE FAILED HOSE HAD A DETERIORATED AND CRACKED EXTERIOR COVER. REMAINING FRAGMENTS WERE FOUND TO BE HARDENED AND BRITTLE. THE PART NUMBER OF THE HOSE WAS DETERMINED TO BE AN S2178-4 SERIES BASED ON VISIBLE NUMBERS FOUND ON THE REMAINING FRAGMENTS. CESSNA SERVICE BULLETIN # SEB 92-8 ISSUED IN 1992 MANDATED REPLACEMENT OF THESE P/N HOSES DUE FOR REASONS THAT WERE NOT CLEARLY SPECIFIED IN THE BULLETIN.REVIEW OF AVAILABLE ACFT MX RECORDS REVEALED THAT THE MOST RECENT REFERENCE TO REPLACEMENT OF THE NOSE GEAR HYDRAULIC ACTUATOR LINES WAS DATED 11/18/1983. THIS WAS ACCOMPLISHED AFTER A PREVIOUS LDG GEAR HYD HOSE FAILURE ON 9/27/1983 (THE FAA INCIDENT SUMMARY FOR THAT MISHAP DID NOT SPECIFY WHICH HOSE FAILED). THE LAST RECORDED ACFT ANNUAL INSPECTION WAS COMPLETED BY AN IA ON 01/01/2011 AT 5,515.9 HRS TTIS. THE ACFT TTIS AT THE TIME OF THIS INCIDENT ON 4/13/2011 WAS 5,531.7 HRS, WHICH IS 15.8 OPERATING HRS, OR 3 MONTHS 13 DAYS, AFTER THE LAST ANNUAL WAS COMPLETED.
Other reports on N2757V · 3
Matched to the same aircraft by N-number and date.