Air carrier medium large transport runaway sel cal chime caused takeoff abort at high speed.

Attributes
ACN	92828
Time
Date	198808
Day	Sat
Local Time Of Day	1201 To 1800
Place
Locale Reference	airport : sjc
State Reference	CA
Altitude	agl bound lower : 0 agl bound upper : 0
Environment
Flight Conditions	IMC
Light	Daylight
Aircraft 1
Controlling Facilities	tower : tys
Operator	common carrier : air carrier
Make Model Name	Medium Large Transport, Low Wing, 2 Turbojet Eng
Navigation In Use	Other
Flight Phase	climbout : takeoff other
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp
Experience	flight time last 90 days : 105 flight time total : 9000
ASRS Report	92828
Person 2
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : atp
Events
Anomaly	aircraft equipment problem : critical other anomaly other
Independent Detector	other flight crewa
Resolutory Action	flight crew : declared emergency none taken : anomaly accepted other
Consequence	Other
Supplementary
Primary Problem	Aircraft
Air Traffic Incident	other

Narrative:

During takeoff roll with a heavy airplane, at about 90 KTS, a cockpit chime began sounding repeatedly. Takeoff was aborted at approximately 110 KTS and the runway cleared. The brake overheat light subsequently came on requiring a return to the gate for inspection and cooling. The chime proved to be a runway SELCAL/ACARS printer chime rather than the F/a's calling with an emergency. Shouldn't warnings of a lesser importance be inhibited from power application to perhaps 3000' AGL? Callback conversation with reporter revealed the following: conversation revealed this is actually the same chime used both for SELCAL and cabin to cockpit. Normally just dings twice for SELCAL, but in this case dinged so many times crew thought it was the cabin attendant emergency call signal. Incident has been given to the company management with suggestion it be deactivated during critical flight regime such as on advanced tech aircraft which have non emergency warnings deactivated between 80 KTS and 400' radio altitude or 20 seconds after nose gear lift off, whichever occurs first. Reporter's management are in agreement with the suggestion and are looking into the technical and economics of retrofitting the medium large transport fleet.

Original NASA ASRS Text

Title: ACR MLG RUNAWAY SEL CAL CHIME CAUSED TKOF ABORT AT HIGH SPEED.

Narrative: DURING TKOF ROLL WITH A HVY AIRPLANE, AT ABOUT 90 KTS, A COCKPIT CHIME BEGAN SOUNDING REPEATEDLY. TKOF WAS ABORTED AT APPROX 110 KTS AND THE RWY CLRED. THE BRAKE OVERHEAT LIGHT SUBSEQUENTLY CAME ON REQUIRING A RETURN TO THE GATE FOR INSPECTION AND COOLING. THE CHIME PROVED TO BE A RWY SELCAL/ACARS PRINTER CHIME RATHER THAN THE F/A'S CALLING WITH AN EMER. SHOULDN'T WARNINGS OF A LESSER IMPORTANCE BE INHIBITED FROM PWR APPLICATION TO PERHAPS 3000' AGL? CALLBACK CONVERSATION WITH RPTR REVEALED THE FOLLOWING: CONVERSATION REVEALED THIS IS ACTUALLY THE SAME CHIME USED BOTH FOR SELCAL AND CABIN TO COCKPIT. NORMALLY JUST DINGS TWICE FOR SELCAL, BUT IN THIS CASE DINGED SO MANY TIMES CREW THOUGHT IT WAS THE CABIN ATTENDANT EMER CALL SIGNAL. INCIDENT HAS BEEN GIVEN TO THE COMPANY MGMNT WITH SUGGESTION IT BE DEACTIVATED DURING CRITICAL FLT REGIME SUCH AS ON ADVANCED TECH ACFT WHICH HAVE NON EMER WARNINGS DEACTIVATED BTWN 80 KTS AND 400' RADIO ALT OR 20 SECS AFTER NOSE GEAR LIFT OFF, WHICHEVER OCCURS FIRST. RPTR'S MGMNT ARE IN AGREEMENT WITH THE SUGGESTION AND ARE LOOKING INTO THE TECHNICAL AND ECONOMICS OF RETROFITTING THE MLG FLEET.

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