A B747-200 flight crew misunderstands clearance and flies wrong SID with similar sounding name and identical alpha numeric suffix from zspd. Clearance delivery contributed by failing to provide full route clearance when cleared route differed from that filed.

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Attributes
ACN	672804
Time
Date	200509
Local Time Of Day	1201 To 1800
Place
Locale Reference	airport : zspd.airport
State Reference	FO
Altitude	msl single value : 3000
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Operator	common carrier : air carrier
Make Model Name	B747-200
Operating Under FAR Part	Part 121
Flight Phase	climbout : initial
Route In Use	departure sid : hsh 22d
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : first officer
Experience	flight time last 90 days : 125 flight time total : 5600 flight time type : 5500
ASRS Report	672804
Person 2
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Events
Anomaly	non adherence : clearance non adherence : published procedure other anomaly other other spatial deviation
Independent Detector	other controllera
Resolutory Action	controller : issued advisory controller : issued new clearance flight crew : returned to intended or assigned course
Supplementary
Problem Areas	Flight Crew Human Performance Environmental Factor ATC Human Performance
Primary Problem	ATC Human Performance
Air Traffic Incident	Intra Facility Coordination Failure other

Narrative:

Our clearance from pvg delivery (zspd) was air carrier xyz; cleared to destination (nrt (rjaa) via flight planned route; FL290; runway 34. Initially climb to 900 meters. Emsan 22D departure. Because emsan was not on our flight planned route; we mistakenly briefed and flew the hsn 22D. (Hsn-22D zhoushan -- sounds like emsan 22D on the radio.) as we were tracking southeast on the hsh VOR 142 degree radial; approach control called; stating we were supposed to be going northeast toward emsan. We informed him our flight plan was to ninas thence G327 and we were proceeding to ninas. He gave us a 030 degree heading for aldap. We requested new routing since this was not on our flight plan and were given direct aldap; emsan; surak; lamen flight planned route. We complied with this clearance and nothing more was said. Corrective actions could include not giving sids to points not on a flight plan. We should have queried it sooner. It would be very helpful to not have the same alpha numeric following different SID names; such as hsn 22D and emsan 22D.

Original NASA ASRS Text

Title: A B747-200 FLT CREW MISUNDERSTANDS CLRNC AND FLIES WRONG SID WITH SIMILAR SOUNDING NAME AND IDENTICAL ALPHA NUMERIC SUFFIX FROM ZSPD. CLRNC DELIVERY CONTRIBUTED BY FAILING TO PROVIDE FULL RTE CLRNC WHEN CLRED RTE DIFFERED FROM THAT FILED.

Narrative: OUR CLRNC FROM PVG DELIVERY (ZSPD) WAS ACR XYZ; CLRED TO DEST (NRT (RJAA) VIA FLT PLANNED RTE; FL290; RWY 34. INITIALLY CLB TO 900 METERS. EMSAN 22D DEP. BECAUSE EMSAN WAS NOT ON OUR FLT PLANNED RTE; WE MISTAKENLY BRIEFED AND FLEW THE HSN 22D. (HSN-22D ZHOUSHAN -- SOUNDS LIKE EMSAN 22D ON THE RADIO.) AS WE WERE TRACKING SE ON THE HSH VOR 142 DEG RADIAL; APCH CTL CALLED; STATING WE WERE SUPPOSED TO BE GOING NE TOWARD EMSAN. WE INFORMED HIM OUR FLT PLAN WAS TO NINAS THENCE G327 AND WE WERE PROCEEDING TO NINAS. HE GAVE US A 030 DEG HDG FOR ALDAP. WE REQUESTED NEW ROUTING SINCE THIS WAS NOT ON OUR FLT PLAN AND WERE GIVEN DIRECT ALDAP; EMSAN; SURAK; LAMEN FLT PLANNED RTE. WE COMPLIED WITH THIS CLRNC AND NOTHING MORE WAS SAID. CORRECTIVE ACTIONS COULD INCLUDE NOT GIVING SIDS TO POINTS NOT ON A FLT PLAN. WE SHOULD HAVE QUERIED IT SOONER. IT WOULD BE VERY HELPFUL TO NOT HAVE THE SAME ALPHA NUMERIC FOLLOWING DIFFERENT SID NAMES; SUCH AS HSN 22D AND EMSAN 22D.

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.