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|
Attributes | |
ACN | 1701247 |
Time | |
Date | 201911 |
Local Time Of Day | 1801-2400 |
Place | |
Locale Reference | ZZZ.Airport |
State Reference | US |
Environment | |
Flight Conditions | VMC |
Light | Night |
Aircraft 1 | |
Make Model Name | MD-11 |
Operating Under FAR Part | Part 121 |
Flight Phase | Climb |
Route In Use | Vectors |
Flight Plan | IFR |
Component | |
Aircraft Component | Fan Blade |
Person 1 | |
Function | Captain Pilot Flying |
Qualification | Flight Crew Multiengine Flight Crew Instrument Flight Crew Air Transport Pilot (ATP) |
Experience | Flight Crew Last 90 Days 60 Flight Crew Total 18200 Flight Crew Type 5500 |
Person 2 | |
Function | Pilot Not Flying First Officer |
Qualification | Flight Crew Air Transport Pilot (ATP) Flight Crew Instrument Flight Crew Multiengine |
Experience | Flight Crew Last 90 Days 40 Flight Crew Total 5100 Flight Crew Type 11000 |
Events | |
Anomaly | Aircraft Equipment Problem Critical Flight Deck / Cabin / Aircraft Event Smoke / Fire / Fumes / Odor Inflight Event / Encounter Bird / Animal |
Narrative:
Normal departure runway xxl at ZZZ. Captain was pilot flying. Heading 030 degrees issued by tower with takeoff clearance. Normal takeoff and initial departure. Flight was handed off to departure; and was issued clearance to a heading of 090 degrees; direct to ZZZ1; climb to and maintain 15;000 ft. MSL. FMS was configured for direct to ZZZ1 and navigation was selected. As the wings rolled level passing 7;000 ft. MSL; the windscreen filled with a large flock of birds of unknown type. Multiple impacts heard in the cockpit; and strong vibrations felt throughout the airframe. A strong 'burnt' odor was also detected by the crew. An immediate decision was made to return to ZZZ; and the aircraft was turned south to enter a downwind for a recovery to runway xxl. Pilot flying called for engine fire sev damage checklist. Moderate to high vibration present; but unsure of damage extent to all engines; and airframe. Airframe and engine integrity was in constant evaluation. All engines continued to operate; with moderate to high vibration felt at low and high thrust settings. At captain's discretion; the crew chose not secure any engine while it could produce power. [Priority handling was requested.] flight was given vectors for the ILS. Attempted to engage autopilot 1; although it disconnected. Aircraft continued to be hand-flown for the time being. Aircraft briefly leveled off at 8;000 ft. MSL; but crew requested and received 7;000 ft. MSL. The auto throttles were disconnected to facilitate a timely descent and hand flown to 7;000 ft. MSL. Flight deck duties were separated to address the duties associated with a quick return. APU was MEL'd inoperative. Engaged autopilot 2. Normal checklist accomplished. Configured aircraft early to address any other damages as they became apparent. Autopilot 2 remained engaged until 500 ft. AGL; then manually disconnected. Landed without further incident. Arff (airport rescue and firefighting) inspected aircraft on runway for any hydraulic; or fuel leaks. Aircraft taxied to ramp under its own power. Post flight visual inspection showed severe damage to multiple engine 1 fan blades and nacelle. Severe damage to multiple left wing slats; with the number 1 slat showing evidence of penetration; and aviary remains. Damage to captain aoa (angle of attack) sensor. Multiple bird strikes aft of radome; nose gear area; and left side fuselage (aft of the 1L door). Engine 3 appeared to be undamaged. Unable to inspect engine 2 due to lack of adequate lift equipment.
Original NASA ASRS Text
Title: Air carrier flight crew had several bird strikes after takeoff. Crew returned to departure airport and landed safely.
Narrative: Normal departure Runway XXL at ZZZ. Captain was Pilot Flying. Heading 030 degrees issued by Tower with takeoff clearance. Normal takeoff and initial departure. Flight was handed off to departure; and was issued clearance to a heading of 090 degrees; direct to ZZZ1; climb to and maintain 15;000 ft. MSL. FMS was configured for direct to ZZZ1 and NAV was selected. As the wings rolled level passing 7;000 ft. MSL; the windscreen filled with a large flock of birds of unknown type. Multiple impacts heard in the cockpit; and strong vibrations felt throughout the airframe. A strong 'burnt' odor was also detected by the crew. An immediate decision was made to return to ZZZ; and the aircraft was turned south to enter a downwind for a recovery to Runway XXL. Pilot Flying called for ENG FIRE SEV DAMAGE checklist. Moderate to high vibration present; but unsure of damage extent to all engines; and airframe. Airframe and engine integrity was in constant evaluation. All engines continued to operate; with moderate to high vibration felt at low and high thrust settings. At Captain's discretion; the crew chose not secure any engine while it could produce power. [Priority handling was requested.] Flight was given vectors for the ILS. Attempted to engage Autopilot 1; although it disconnected. Aircraft continued to be hand-flown for the time being. Aircraft briefly leveled off at 8;000 ft. MSL; but crew requested and received 7;000 ft. MSL. The auto throttles were disconnected to facilitate a timely descent and hand flown to 7;000 ft. MSL. Flight deck duties were separated to address the duties associated with a quick return. APU was MEL'd inoperative. Engaged autopilot 2. Normal checklist accomplished. Configured aircraft early to address any other damages as they became apparent. Autopilot 2 remained engaged until 500 ft. AGL; then manually disconnected. Landed without further incident. ARFF (Airport Rescue and Firefighting) inspected aircraft on runway for any hydraulic; or fuel leaks. Aircraft taxied to ramp under its own power. Post flight visual inspection showed severe damage to multiple Engine 1 fan blades and nacelle. Severe damage to multiple left wing slats; with the number 1 slat showing evidence of penetration; and aviary remains. Damage to Captain AOA (Angle of Attack) sensor. Multiple bird strikes aft of radome; nose gear area; and left side fuselage (aft of the 1L door). Engine 3 appeared to be undamaged. Unable to inspect Engine 2 due to lack of adequate lift equipment.
Data retrieved from NASA's ASRS site 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.