<< >> NASA ASRS Report 548312, April 2002

A canadair CL65 rejected takeoff due to oxygen ground service panel was open and interfering with the stall warning sensor.

Attributes
ACN	548312
Time
Date	200204
Day	Sat
Local Time Of Day	0601 To 1200
Place
Locale Reference	airport : zzz.airport
State Reference	US
Altitude	agl single value : 0
Environment
Light	Daylight
Aircraft 1
Operator	common carrier : air carrier
Make Model Name	Regional Jet CL65, Undifferentiated or Other Model
Operating Under FAR Part	Part 121
Navigation In Use	other
Flight Phase	ground : takeoff roll
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	maintenance : technician
Qualification	technician : fcc technician : powerplant technician : airframe
Experience	maintenance technician : 14
ASRS Report	548312
Person 2
Affiliation	company : air carrier
Function	maintenance : inspector
Events
Anomaly	aircraft equipment problem : critical maintenance problem : improper maintenance non adherence : far non adherence : published procedure
Independent Detector	aircraft equipment other aircraft equipment : stall warning indications other other : person 2
Resolutory Action	flight crew : rejected takeoff none taken : detected after the fact
Consequence	other Other
Factors
Maintenance	performance deficiency : non compliance with legal requirements
Supplementary
Problem Areas	Aircraft Flight Crew Human Performance Maintenance Human Performance
Primary Problem	Maintenance Human Performance

Narrative:

My co-worker and I performed a service check on aircraft X. We were about to service oxygen. I closed ground oxygen service panel door -- hearing both snaps lock -- then making a fist and hitting door. As a safety that door is shut. My co-worker observed me doing this action, I continued to perform 'our service check' on aircraft X. I did another walkaround on aircraft X to check fuselage from nose-to-tail and observing all doors and panels were shut. Again, as a safety, I took my fist and pounded each access door -- all were shut, none loose/open. My co-worker and I finished our service check and my lead signed off logbook for return to service. Apparently we heard a problem that aircraft X was on takeoff roll and aborted takeoff because of 'stall warning indications,' etc, so plane came back to gate. My lead checked aircraft X. No problems or damage to aircraft, and aircraft returned to service after my lead went and ran a system check for stall/warning indications.

Related reports:

• A canadair CL65 in climb at 1000 ft diverts due to a noisy c...
• A canadair CL65 in descent at FL210 found ailerons stiff and...

	Enter your search terms Submit search form
	Web www.37000feet.com

Original NASA ASRS Text

Title: A CANADAIR CL65 REJECTED TKOF DUE TO OXYGEN GND SVC PANEL WAS OPEN AND INTERFERING WITH THE STALL WARNING SENSOR.

Narrative: MY CO-WORKER AND I PERFORMED A SVC CHK ON ACFT X. WE WERE ABOUT TO SVC OXYGEN. I CLOSED GND OXYGEN SVC PANEL DOOR -- HEARING BOTH SNAPS LOCK -- THEN MAKING A FIST AND HITTING DOOR. AS A SAFETY THAT DOOR IS SHUT. MY CO-WORKER OBSERVED ME DOING THIS ACTION, I CONTINUED TO PERFORM 'OUR SVC CHK' ON ACFT X. I DID ANOTHER WALKAROUND ON ACFT X TO CHK FUSELAGE FROM NOSE-TO-TAIL AND OBSERVING ALL DOORS AND PANELS WERE SHUT. AGAIN, AS A SAFETY, I TOOK MY FIST AND POUNDED EACH ACCESS DOOR -- ALL WERE SHUT, NONE LOOSE/OPEN. MY CO-WORKER AND I FINISHED OUR SVC CHK AND MY LEAD SIGNED OFF LOGBOOK FOR RETURN TO SVC. APPARENTLY WE HEARD A PROB THAT ACFT X WAS ON TKOF ROLL AND ABORTED TKOF BECAUSE OF 'STALL WARNING INDICATIONS,' ETC, SO PLANE CAME BACK TO GATE. MY LEAD CHKED ACFT X. NO PROBS OR DAMAGE TO ACFT, AND ACFT RETURNED TO SVC AFTER MY LEAD WENT AND RAN A SYS CHK FOR STALL/WARNING INDICATIONS.

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.