A B727-200 cargo flight enters runway 8 without clearance at sju, pr.

Attributes
ACN	458254
Time
Date	199912
Day	Sat
Local Time Of Day	0601 To 1200
Place
Locale Reference	airport : sju.airport
State Reference	PR
Altitude	agl single value : 0
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Operator	common carrier : air carrier
Make Model Name	B727-200
Operating Under FAR Part	Part 121
Flight Phase	ground : position and hold ground : holding
Flight Plan	IFR
Aircraft 2
Controlling Facilities	tower : sju.tower
Operator	general aviation : personal
Make Model Name	Skyhawk 172/Cutlass 172
Operating Under FAR Part	Part 91
Flight Phase	climbout : takeoff ground : taxi ground : takeoff roll
Person 1
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp pilot : cfi pilot : commercial pilot : flight engineer
Experience	flight time last 90 days : 180 flight time total : 18190 flight time type : 11960
ASRS Report	458254
Person 2
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : multi engine pilot : instrument pilot : flight engineer pilot : commercial pilot : cfi pilot : atp
Experience	flight time last 90 days : 100 flight time total : 2800 flight time type : 230
ASRS Report	457922
Events
Anomaly	conflict : ground less severe incursion : runway non adherence : clearance non adherence : far other anomaly other
Independent Detector	other controllera
Resolutory Action	controller : issued new clearance controller : separated traffic flight crew : executed go around flight crew : executed missed approach
Consequence	faa : reviewed incident with flight crew
Supplementary
Problem Areas	ATC Human Performance Airport Environmental Factor Flight Crew Human Performance
Primary Problem	Flight Crew Human Performance
Air Traffic Incident	Pilot Deviation

Narrative:

Taxiing to runway 8, we were following a C172 on taxiway HZ. At least 7 aircraft were waiting for takeoff on txwys HZ and south. The controller cleared the cessna to taxi ahead and hold short of runway 8 at taxiway Z, adding for us to expect to be following the cessna. Shortly thereafter, the tower cleared the cessna for takeoff, no delay, and I understood we were cleared into position and hold. My crew heard a hold short clearance. Therefore, I continued taxiing onto the runway surface before my crew could question my action. This resulted in the tower directing a go around of an ATR. We were then cleared for takeoff. Out of concern we apologized for the misunderstanding after takeoff and we obtained a tower phone number so we could discuss the occurrence after landing in miami. When I called, I spoke to the morning shift supervisor. He was pleased we had admitted error just after takeoff, but added that the clearance was unclr. In fact the controller had given clearance to 2 aircraft in 1 call asking them both to advance and this contributed to the misunderstanding on the takeoff clearance. Further, he said he would not pursue FAA action since both pilot crew and controller had contributed to the error. He added, 'we all need to be careful out there.' I agreed. Supplemental information from acn 458116: at this time I became preoccupied with my pretkof duties, and was unaware of any further clearance. We departed san juan and apologized for any inconvenience caused. The controller replied 'no problem.' supplemental information from acn 457922: the controller was incredibly busy trying to coordinate not only departures on runway 8, but also lndgs due to the other runway being closed. This is where I believe the problem arose. We were cleared #2 behind the cessna and were told to taxi up to and hold short of taxiway Z. As a result of the controller's implications that we were to follow the cessna we did, where we entered an active runway without a clearance.

Original NASA ASRS Text

Title: A B727-200 CARGO FLT ENTERS RWY 8 WITHOUT CLRNC AT SJU, PR.

Narrative: TAXIING TO RWY 8, WE WERE FOLLOWING A C172 ON TXWY HZ. AT LEAST 7 ACFT WERE WAITING FOR TKOF ON TXWYS HZ AND S. THE CTLR CLRED THE CESSNA TO TAXI AHEAD AND HOLD SHORT OF RWY 8 AT TXWY Z, ADDING FOR US TO EXPECT TO BE FOLLOWING THE CESSNA. SHORTLY THEREAFTER, THE TWR CLRED THE CESSNA FOR TKOF, NO DELAY, AND I UNDERSTOOD WE WERE CLRED INTO POS AND HOLD. MY CREW HEARD A HOLD SHORT CLRNC. THEREFORE, I CONTINUED TAXIING ONTO THE RWY SURFACE BEFORE MY CREW COULD QUESTION MY ACTION. THIS RESULTED IN THE TWR DIRECTING A GAR OF AN ATR. WE WERE THEN CLRED FOR TKOF. OUT OF CONCERN WE APOLOGIZED FOR THE MISUNDERSTANDING AFTER TKOF AND WE OBTAINED A TWR PHONE NUMBER SO WE COULD DISCUSS THE OCCURRENCE AFTER LNDG IN MIAMI. WHEN I CALLED, I SPOKE TO THE MORNING SHIFT SUPVR. HE WAS PLEASED WE HAD ADMITTED ERROR JUST AFTER TKOF, BUT ADDED THAT THE CLRNC WAS UNCLR. IN FACT THE CTLR HAD GIVEN CLRNC TO 2 ACFT IN 1 CALL ASKING THEM BOTH TO ADVANCE AND THIS CONTRIBUTED TO THE MISUNDERSTANDING ON THE TKOF CLRNC. FURTHER, HE SAID HE WOULD NOT PURSUE FAA ACTION SINCE BOTH PLT CREW AND CTLR HAD CONTRIBUTED TO THE ERROR. HE ADDED, 'WE ALL NEED TO BE CAREFUL OUT THERE.' I AGREED. SUPPLEMENTAL INFO FROM ACN 458116: AT THIS TIME I BECAME PREOCCUPIED WITH MY PRETKOF DUTIES, AND WAS UNAWARE OF ANY FURTHER CLRNC. WE DEPARTED SAN JUAN AND APOLOGIZED FOR ANY INCONVENIENCE CAUSED. THE CTLR REPLIED 'NO PROB.' SUPPLEMENTAL INFO FROM ACN 457922: THE CTLR WAS INCREDIBLY BUSY TRYING TO COORDINATE NOT ONLY DEPS ON RWY 8, BUT ALSO LNDGS DUE TO THE OTHER RWY BEING CLOSED. THIS IS WHERE I BELIEVE THE PROB AROSE. WE WERE CLRED #2 BEHIND THE CESSNA AND WERE TOLD TO TAXI UP TO AND HOLD SHORT OF TXWY Z. AS A RESULT OF THE CTLR'S IMPLICATIONS THAT WE WERE TO FOLLOW THE CESSNA WE DID, WHERE WE ENTERED AN ACTIVE RWY WITHOUT A CLRNC.

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.