A B737-300 #1 engine fails on a ferry flight. Aircraft previously inspected for bird strike damage. ...

Attributes
ACN	770163
Time
Date	200804
Local Time Of Day	1201 To 1800
Place
Locale Reference	airport : zzz.airport
State Reference	US
Altitude	agl single value : 0
Aircraft 1
Operator	common carrier : air carrier
Make Model Name	B737-300
Operating Under FAR Part	Part 121
Person 1
Affiliation	company : air carrier
Function	maintenance : technician
Qualification	technician : powerplant technician : airframe
ASRS Report	770163
Events
Anomaly	aircraft equipment problem : critical inflight encounter : birds
Independent Detector	other other : 1
Resolutory Action	none taken : detected after the fact
Consequence	other other
Factors
Maintenance	contributing factor : manuals contributing factor : briefing performance deficiency : testing
Supplementary
Problem Areas	Chart Or Publication Aircraft
Primary Problem	Chart Or Publication

Narrative:

I received a call for maintenance to check aircraft for thrust reverser discrepancy. When the aircraft came to the gate; I noticed that the aircraft had experienced a bird strike on the left wing and outboard side of #1 engine. I went to the captain. He told me he encountered a bird strike. He told me that all engine parameters were normal and no smell associated with the bird strike. I performed an engine parameters normal bird strike inspection -- before and after I cleaned it. I looked over the entire aircraft many times. The damage found dent outboard side of #1 engine 9 O'clock position. Damage to inboard fore-flap trailing edge. Damage to left inboard mid-flap leading edge. All damage was contained on left side of aircraft. I entered all write-ups in logbook and inspected aircraft for 1-TIME ferry flight. The next day the aircraft lost #1 engine. I think; in the future; all bird strikes with debris in the bypass area should undergo a takeoff power check prior to signing off inspection. I have inspected quite a few engines since coming to this location and every one I've inspected is still flying. So to make sure this does not happen; I recommend doing run-up of aircraft.

Original NASA ASRS Text

Title: A B737-300 #1 ENG FAILS ON A FERRY FLIGHT. ACFT PREVIOUSLY INSPECTED FOR BIRD STRIKE DAMAGE. MECHANIC RECOMMENDS DOING A TAKEOFF ENGINE POWER CHECK PRIOR TO SIGNING OFF THE BIRD STRIKE INSPECTION WALKAROUND.

Narrative: I RECEIVED A CALL FOR MAINT TO CHK ACFT FOR THRUST REVERSER DISCREPANCY. WHEN THE ACFT CAME TO THE GATE; I NOTICED THAT THE ACFT HAD EXPERIENCED A BIRD STRIKE ON THE L WING AND OUTBOARD SIDE OF #1 ENG. I WENT TO THE CAPT. HE TOLD ME HE ENCOUNTERED A BIRD STRIKE. HE TOLD ME THAT ALL ENG PARAMETERS WERE NORMAL AND NO SMELL ASSOCIATED WITH THE BIRD STRIKE. I PERFORMED AN ENG PARAMETERS NORMAL BIRD STRIKE INSPECTION -- BEFORE AND AFTER I CLEANED IT. I LOOKED OVER THE ENTIRE ACFT MANY TIMES. THE DAMAGE FOUND DENT OUTBOARD SIDE OF #1 ENG 9 O'CLOCK POS. DAMAGE TO INBOARD FORE-FLAP TRAILING EDGE. DAMAGE TO L INBOARD MID-FLAP LEADING EDGE. ALL DAMAGE WAS CONTAINED ON L SIDE OF ACFT. I ENTERED ALL WRITE-UPS IN LOGBOOK AND INSPECTED ACFT FOR 1-TIME FERRY FLT. THE NEXT DAY THE ACFT LOST #1 ENG. I THINK; IN THE FUTURE; ALL BIRD STRIKES WITH DEBRIS IN THE BYPASS AREA SHOULD UNDERGO A TKOF PWR CHK PRIOR TO SIGNING OFF INSPECTION. I HAVE INSPECTED QUITE A FEW ENGS SINCE COMING TO THIS LOCATION AND EVERY ONE I'VE INSPECTED IS STILL FLYING. SO TO MAKE SURE THIS DOES NOT HAPPEN; I RECOMMEND DOING RUN-UP OF ACFT.

Data retrieved from NASA's ASRS site as of May 2009 and automatically converted to unabbreviated mixed upper/lowercase text. This report is for informational purposes with no guarantee of accuracy. See NASA's ASRS site for official report.

A B737-300 #1 engine fails on a ferry flight. Aircraft previously inspected for bird strike damage. Mechanic recommends doing a takeoff engine power check prior to signing off the bird strike inspection walkaround.