<< >> NASA ASRS Report 564892, November 2002

A DC10-30 on landing rollout after thrust reverser deployment the #2 engine left fan reversing cowling departed the aircraft. Cause unknown.

Attributes
ACN	564892
Time
Date	200211
Day	Sat
Local Time Of Day	1201 To 1800
Place
Locale Reference	airport : zzz.airport
State Reference	US
Altitude	agl single value : 0
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Operator	common carrier : air carrier
Make Model Name	DC-10 30
Operating Under FAR Part	Part 121
Flight Phase	landing : roll
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp
Experience	flight time last 90 days : 40 flight time total : 16000 flight time type : 10000
ASRS Report	564892
Person 2
Affiliation	company : air carrier
Function	flight crew : second officer
Qualification	pilot : atp pilot : flight engineer
Experience	flight time last 90 days : 150 flight time total : 12000 flight time type : 0
ASRS Report	565063
Events
Anomaly	aircraft equipment problem : critical other anomaly other
Independent Detector	aircraft equipment other aircraft equipment : #2 reverser warning lights other controllera
Consequence	other other other
Supplementary
Problem Areas	Aircraft
Primary Problem	Aircraft

Narrative:

Departed oak. On landing at ZZZ, normal reverse thrust applied on all engines. Shortly after moving reverse levers down at 80 KTS, the tower asked if we needed assistance, since he had seen parts fall off the aircraft. The #2 reverse unlock light came on at the same time. We cleared the runway, ran the appropriate checklist, and shut down #2 engine as a precaution. Parts of the left half of the #2 reverser were found on the runway (runway 4R). Callback conversation with reporter revealed the following information: the engine reversers deployed with no warning, but with the thrust levers in idle for reverser stow, the #2 engine reverser pressure warning and the not stow warning were illuminated. The reporter said the engine was shut down on taxi into the gate. The reporter stated maintenance has not advised the crew of the corrective action and the primary cause.

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Original NASA ASRS Text

Title: A DC10-30 ON LNDG ROLLOUT AFTER THRUST REVERSER DEPLOYMENT THE #2 ENG L FAN REVERSING COWLING DEPARTED THE ACFT. CAUSE UNKNOWN.

Narrative: DEPARTED OAK. ON LNDG AT ZZZ, NORMAL REVERSE THRUST APPLIED ON ALL ENGS. SHORTLY AFTER MOVING REVERSE LEVERS DOWN AT 80 KTS, THE TWR ASKED IF WE NEEDED ASSISTANCE, SINCE HE HAD SEEN PARTS FALL OFF THE ACFT. THE #2 REVERSE UNLOCK LIGHT CAME ON AT THE SAME TIME. WE CLRED THE RWY, RAN THE APPROPRIATE CHKLIST, AND SHUT DOWN #2 ENG AS A PRECAUTION. PARTS OF THE L HALF OF THE #2 REVERSER WERE FOUND ON THE RWY (RWY 4R). CALLBACK CONVERSATION WITH RPTR REVEALED THE FOLLOWING INFO: THE ENG REVERSERS DEPLOYED WITH NO WARNING, BUT WITH THE THRUST LEVERS IN IDLE FOR REVERSER STOW, THE #2 ENG REVERSER PRESSURE WARNING AND THE NOT STOW WARNING WERE ILLUMINATED. THE RPTR SAID THE ENG WAS SHUT DOWN ON TAXI INTO THE GATE. THE RPTR STATED MAINT HAS NOT ADVISED THE CREW OF THE CORRECTIVE ACTION AND THE PRIMARY CAUSE.

Data retrieved from NASA's ASRS site as of July 2007 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.