ATCT local controller cleared an air carrier B737 to cross runway 4L and runway 8L on taxiway east after landing rollout. Controller distraction by another aircraft with a problem and a helicopter wanting to cross airport and when he returned scan to runways, saw the B737 crossing runway 4L as a PA23 was flaring for landing on the runway.

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Attributes
ACN	349902
Time
Date	199610
Day	Mon
Local Time Of Day	0601 To 1200
Place
Locale Reference	airport : hnl
State Reference	HI
Altitude	agl bound lower : 0 agl bound upper : 300
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	tower : hnl
Operator	common carrier : air taxi
Make Model Name	PA-23-250 Aztec
Operating Under FAR Part	Part 135
Flight Phase	descent : approach
Flight Plan	VFR
Aircraft 2
Operator	common carrier : air carrier
Make Model Name	B737 Undifferentiated or Other Model
Operating Under FAR Part	Part 121
Navigation In Use	Other
Flight Phase	ground other : taxi
Flight Plan	IFR
Person 1
Affiliation	government : faa
Function	controller : local
Qualification	controller : radar
Experience	controller military : 7 controller non radar : 3 controller radar : 20 controller supervisory : 5
ASRS Report	349902
Person 2
Affiliation	company : air taxi
Function	flight crew : single pilot
Qualification	pilot : commercial pilot : instrument
Events
Anomaly	other anomaly other
Independent Detector	other controllera
Resolutory Action	none taken : anomaly accepted
Consequence	Other
Miss Distance	horizontal : 3500 vertical : 300
Supplementary
Primary Problem	ATC Human Performance
Air Traffic Incident	other

Narrative:

Air carrier Y (B737) rolling out on runway 4R, to clear at taxiway east, cross runway 4L and runway 8L. Small transport X (PA23) on final to runway 4L. Air carrier Y crossed runway 4L as small transport X flaring for landing. Aircraft not initially observed due to factors affecting controller workload, ie, major runway closure (runway 8L). All traffic diverted to runways 4L&right for arrs. Preceding aircraft, a PA28, reported an open door. PA28 was given control instructions to re-enter traffic pattern. PA28 was issued traffic to follow, small transport X, reported traffic in sight. In addition, tour helicopter was approaching over main terminal for crossing runway 8L, runway 4L, and runway 4R. Due to close proximity, attention was diverted to assist the PA28 in possible distress. Small transport X may have executed a short approach without local controller's knowledge. Small transport X was last observed entering downwind nne of airport.

Original NASA ASRS Text

Title: ATCT LCL CTLR CLRED AN ACR B737 TO CROSS RWY 4L AND RWY 8L ON TXWY E AFTER LNDG ROLLOUT. CTLR DISTR BY ANOTHER ACFT WITH A PROB AND A HELI WANTING TO CROSS ARPT AND WHEN HE RETURNED SCAN TO RWYS, SAW THE B737 XING RWY 4L AS A PA23 WAS FLARING FOR LNDG ON THE RWY.

Narrative: ACR Y (B737) ROLLING OUT ON RWY 4R, TO CLR AT TXWY E, CROSS RWY 4L AND RWY 8L. SMT X (PA23) ON FINAL TO RWY 4L. ACR Y CROSSED RWY 4L AS SMT X FLARING FOR LNDG. ACFT NOT INITIALLY OBSERVED DUE TO FACTORS AFFECTING CTLR WORKLOAD, IE, MAJOR RWY CLOSURE (RWY 8L). ALL TFC DIVERTED TO RWYS 4L&R FOR ARRS. PRECEDING ACFT, A PA28, RPTED AN OPEN DOOR. PA28 WAS GIVEN CTL INSTRUCTIONS TO RE-ENTER TFC PATTERN. PA28 WAS ISSUED TFC TO FOLLOW, SMT X, RPTED TFC IN SIGHT. IN ADDITION, TOUR HELI WAS APCHING OVER MAIN TERMINAL FOR XING RWY 8L, RWY 4L, AND RWY 4R. DUE TO CLOSE PROX, ATTN WAS DIVERTED TO ASSIST THE PA28 IN POSSIBLE DISTRESS. SMT X MAY HAVE EXECUTED A SHORT APCH WITHOUT LCL CTLR'S KNOWLEDGE. SMT X WAS LAST OBSERVED ENTERING DOWNWIND NNE OF ARPT.

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.