DHC8 flight crew was advised access door open prior to takeoff.

Attributes
ACN	437360
Time
Date	199905
Day	Sat
Local Time Of Day	1201 To 1800
Place
Locale Reference	airport : phl.airport
State Reference	PA
Altitude	agl single value : 0
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Operator	common carrier : air carrier
Make Model Name	Dash 8-100
Operating Under FAR Part	Part 121
Navigation In Use	other
Flight Phase	ground : taxi ground : position and hold
Flight Plan	IFR
Aircraft 2
Controlling Facilities	tower : phl.tower
Operator	general aviation : corporate
Make Model Name	Gulfstream IV
Operating Under FAR Part	Part 91
Flight Phase	ground : holding
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : commercial pilot : multi engine pilot : instrument
Experience	flight time last 90 days : 250 flight time total : 1600 flight time type : 500
ASRS Report	437360
Person 2
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp
Experience	flight time total : 15000 flight time type : 747
ASRS Report	437117
Events
Anomaly	aircraft equipment problem : less severe maintenance problem : improper maintenance non adherence : company policies non adherence : published procedure
Independent Detector	other flight crewa
Resolutory Action	flight crew : overcame equipment problem
Consequence	other
Supplementary
Problem Areas	Maintenance Human Performance Aircraft
Primary Problem	Maintenance Human Performance

Narrative:

I performed the walkaround and noted that the lavatory was being svced. Preflight preparations went normally. We started up and taxied out for departure. At the end of runway 17 we proceeded in front of a G4. Phl tower cleared us into position and hold. As we lined up, the G4 pilot notified us that an access door was open. We taxied off the runway. The captain shut the aircraft down, and went to investigate. He returned and said that the lavatory door had been left open. Additionally, the service panel was left configured to service the lavatory. Apparently, the ground person did not finish his job.

Original NASA ASRS Text

Title: DHC8 FLC WAS ADVISED ACCESS DOOR OPEN PRIOR TO TKOF.

Narrative: I PERFORMED THE WALKAROUND AND NOTED THAT THE LAVATORY WAS BEING SVCED. PREFLT PREPARATIONS WENT NORMALLY. WE STARTED UP AND TAXIED OUT FOR DEP. AT THE END OF RWY 17 WE PROCEEDED IN FRONT OF A G4. PHL TWR CLRED US INTO POS AND HOLD. AS WE LINED UP, THE G4 PLT NOTIFIED US THAT AN ACCESS DOOR WAS OPEN. WE TAXIED OFF THE RWY. THE CAPT SHUT THE ACFT DOWN, AND WENT TO INVESTIGATE. HE RETURNED AND SAID THAT THE LAVATORY DOOR HAD BEEN LEFT OPEN. ADDITIONALLY, THE SVC PANEL WAS LEFT CONFIGURED TO SVC THE LAVATORY. APPARENTLY, THE GND PERSON DID NOT FINISH HIS JOB.

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.