B737-700 flight crew inadvertently secures both engines during taxi into the gate.

Attributes
ACN	709728
Time
Date	200609
Local Time Of Day	1201 To 1800
Place
Locale Reference	airport : las.airport
State Reference	NV
Altitude	agl single value : 0
Environment
Flight Conditions	VMC
Light	Night
Aircraft 1
Operator	common carrier : air carrier
Make Model Name	B737-700
Operating Under FAR Part	Part 121
Flight Phase	ground : taxi
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Experience	flight time last 90 days : 257 flight time type : 7500
ASRS Report	709728
Person 2
Affiliation	company : air carrier
Function	flight crew : first officer
Experience	flight time last 90 days : 349 flight time type : 720
ASRS Report	709727
Events
Anomaly	non adherence : published procedure non adherence : company policies
Independent Detector	other flight crewa other flight crewb
Resolutory Action	none taken : detected after the fact
Consequence	other
Supplementary
Problem Areas	Flight Crew Human Performance Aircraft
Primary Problem	Flight Crew Human Performance

Narrative:

Commencing 90 degree left turn to lead-in line; confirmed with first officer safety zone was clear; director and gate service team in sight. As I shut down #2 for gate services; I inadvertently shut down #1 at the same time. After recovering from shock; glanced at zero hydraulic pressure and brought aircraft to smooth stop with approximately 1 aircraft length and 30-40 degrees of turn remaining. First officer and I agreed we would start APU; then #1 engine and taxi short distance to gate. Alert ground crew was already at window coordinating tow to gate. They had tow bar hooked up before we even had APU on line. Director gave me brake release while I was putting APU on bus to restore electrical power. I forgot to secure hydraulic pumps and tow bar pin broke as tractor attempted to move aircraft. Cleared ground crew from aircraft; started #1 and taxied to spot. Requested maintenance to take a look at nose gear and they discovered tow link on nose gear was also broken.

Original NASA ASRS Text

Title: B737-700 FLT CREW INADVERTENTLY SECURES BOTH ENGS DURING TAXI INTO THE GATE.

Narrative: COMMENCING 90 DEG L TURN TO LEAD-IN LINE; CONFIRMED WITH FO SAFETY ZONE WAS CLR; DIRECTOR AND GATE SVC TEAM IN SIGHT. AS I SHUT DOWN #2 FOR GATE SVCS; I INADVERTENTLY SHUT DOWN #1 AT THE SAME TIME. AFTER RECOVERING FROM SHOCK; GLANCED AT ZERO HYD PRESSURE AND BROUGHT ACFT TO SMOOTH STOP WITH APPROX 1 ACFT LENGTH AND 30-40 DEGS OF TURN REMAINING. FO AND I AGREED WE WOULD START APU; THEN #1 ENG AND TAXI SHORT DISTANCE TO GATE. ALERT GND CREW WAS ALREADY AT WINDOW COORDINATING TOW TO GATE. THEY HAD TOW BAR HOOKED UP BEFORE WE EVEN HAD APU ON LINE. DIRECTOR GAVE ME BRAKE RELEASE WHILE I WAS PUTTING APU ON BUS TO RESTORE ELECTRICAL PWR. I FORGOT TO SECURE HYD PUMPS AND TOW BAR PIN BROKE AS TRACTOR ATTEMPTED TO MOVE ACFT. CLRED GND CREW FROM ACFT; STARTED #1 AND TAXIED TO SPOT. REQUESTED MAINT TO TAKE A LOOK AT NOSE GEAR AND THEY DISCOVERED TOW LINK ON NOSE GEAR WAS ALSO BROKEN.

Data retrieved from NASA's ASRS site as of January 2009 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.