B737-800 ground and flight crew discover a damaged tat probe.

Attributes
ACN	703450
Time
Date	200607
Local Time Of Day	1201 To 1800
Place
Locale Reference	airport : fll.airport
State Reference	FL
Altitude	agl single value : 0
Environment
Weather Elements	Windshear Rain
Light	Daylight
Aircraft 1
Operator	common carrier : air carrier
Make Model Name	B737-800
Operating Under FAR Part	Part 121
Flight Phase	ground : parked
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
ASRS Report	703450
Person 2
Affiliation	company : air carrier
Function	flight crew : first officer
ASRS Report	703093
Events
Anomaly	aircraft equipment problem : critical ground encounters other
Independent Detector	other flight crewa other flight crewb
Resolutory Action	none taken : detected after the fact
Consequence	other other
Supplementary
Problem Areas	Aircraft Flight Crew Human Performance
Primary Problem	Aircraft

Narrative:

On the first flight of the day; aircraft tat probe was found damaged by fll ground personnel. The first officer had just completed his external walkaround in the rain and had not noticed the damage. I was already talking to dispatch and technician about cockpit indications of a tat probe failure when fll ground personnel came to the cockpit and told me of the damage. It appears the damage occurred during aircraft tow/jetbridge mating. The first officer realizes he should have found the problem; but felt he was distraction by the heavy rain during the walkaround. Supplemental information from acn 703093: the captain noticed irregularities in the FMC on the N1 page. The plane was grounded until it could be repaired. The captain talked to me about paying closer attention on the walkaround inspection. It won't happen again.

Original NASA ASRS Text

Title: B737-800 GND AND FLT CREW DISCOVER A DAMAGED TAT PROBE.

Narrative: ON THE FIRST FLT OF THE DAY; ACFT TAT PROBE WAS FOUND DAMAGED BY FLL GND PERSONNEL. THE FO HAD JUST COMPLETED HIS EXTERNAL WALKAROUND IN THE RAIN AND HAD NOT NOTICED THE DAMAGE. I WAS ALREADY TALKING TO DISPATCH AND TECHNICIAN ABOUT COCKPIT INDICATIONS OF A TAT PROBE FAILURE WHEN FLL GND PERSONNEL CAME TO THE COCKPIT AND TOLD ME OF THE DAMAGE. IT APPEARS THE DAMAGE OCCURRED DURING ACFT TOW/JETBRIDGE MATING. THE FO REALIZES HE SHOULD HAVE FOUND THE PROB; BUT FELT HE WAS DISTR BY THE HVY RAIN DURING THE WALKAROUND. SUPPLEMENTAL INFO FROM ACN 703093: THE CAPT NOTICED IRREGULARITIES IN THE FMC ON THE N1 PAGE. THE PLANE WAS GROUNDED UNTIL IT COULD BE REPAIRED. THE CAPT TALKED TO ME ABOUT PAYING CLOSER ATTN ON THE WALKAROUND INSPECTION. IT WON'T HAPPEN AGAIN.

Data retrieved from NASA's ASRS site as of January 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.