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20180621008789I

Incident · Minor damage
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FAA incident report · Boeing B-747 · Chicago, IL · June 21, 2018

FAA Aviation Safety Information Portal

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Date
June 21, 2018 · 09:58 local
Place
Chicago, IL
Phase of flight
Landing: Approach
Operating rules
Foreign air carrier (Part 129)
Operator
SAJF
Damage
Minor damage
Aircraft
B18711
Reported as
Boeing B-747
People aboard
2
Fatal injuries
0
Other injuries
0
Pilot’s certificate
Unknown or foreign certificate

From the FAA’s Accident/Incident Data System (AIDS), through its Aviation Safety Information Portal, as reported. The NTSB investigates accidents separately, and its record of an accident is the fuller one. The aircraft is matched to the registry by N-number and event date, checked against the reported make and model; the registry’s history has gaps, so older matches can be wrong. Compare the reported make and model.

What happened

The FAA’s narrative, in sentence case. The FAA writes it in capitals and removes private details.

1St approach-ils 10L, moderate rain and low clouds. Pilot flying, CM1, decided to do an auto land. Approach was normal until very low altitude (about 40' AGL). Aircraft started to deviate to the left because of LOC corruption. CM1 decided to abort landing and pushed toga switch, no reaction from aircraft. CM1 disconnected auto pilot and pushed thrust forward manually. The altitude was very low and aircraft was heavy. Aircraft touched down both left main gear off (north) in the grass just east of taxiway dd while performing a balked-landing.

No emergency was declared. The aircraft returned to kord, safely landing on runway 9R and taxied to north cargo parking ramp. The damage observed were tread separation on the left main, an accumulation of grass, 4 separate paint scratches under the belly of the aircraft, and mud on the gear. Data from the CVR and FDR have been requested by the NTSB through AVP-100.

Note: this incident is still under investigation, and will be amended as mitigation strategies are currently in progress.

Pilot certificate numbers are known, but are unable to be entered due to software limitations.

As the FAA filed it

1ST APPROACH-ILS 10L, MODERATE RAIN AND LOW CLOUDS. PILOT FLYING, CM1, DECIDED TO DO AN AUTO LAND. APPROACH WAS NORMAL UNTIL VERY LOW ALTITUDE (ABOUT 40' AGL). AIRCRAFT STARTED TO DEVIATE TO THE LEFT BECAUSE OF LOC CORRUPTION. CM1 DECIDED TO ABORT LANDING AND PUSHED TOGA SWITCH, NO REACTION FROM AIRCRAFT. CM1 DISCONNECTED AUTO PILOT AND PUSHED THRUST FORWARD MANUALLY. THE ALTITUDE WAS VERY LOW AND AIRCRAFT WAS HEAVY. AIRCRAFT TOUCHED DOWN BOTH LEFT MAIN GEAR OFF (NORTH) IN THE GRASS JUST EAST OF TAXIWAY DD WHILE PERFORMING A BALKED-LANDING.

NO EMERGENCY WAS DECLARED. THE AIRCRAFT RETURNED TO KORD, SAFELY LANDING ON RUNWAY 9R AND TAXIED TO NORTH CARGO PARKING RAMP. THE DAMAGE OBSERVED WERE TREAD SEPARATION ON THE LEFT MAIN, AN ACCUMULATION OF GRASS, 4 SEPARATE PAINT SCRATCHES UNDER THE BELLY OF THE AIRCRAFT, AND MUD ON THE GEAR. DATA FROM THE CVR AND FDR HAVE BEEN REQUESTED BY THE NTSB THROUGH AVP-100.

NOTE: THIS INCIDENT IS STILL UNDER INVESTIGATION, AND WILL BE AMENDED AS MITIGATION STRATEGIES ARE CURRENTLY IN PROGRESS.

PILOT CERTIFICATE NUMBERS ARE KNOWN, BUT ARE UNABLE TO BE ENTERED DUE TO SOFTWARE LIMITATIONS.