B777 crew reports confusing note on rokil 8 RNAV arrival to muc.

Attributes
ACN	718856
Time
Date	200611
Local Time Of Day	0601 To 1200
Place
Locale Reference	airport : eddm.airport
State Reference	FO
Altitude	msl single value : 5000
Environment
Flight Conditions	IMC
Aircraft 1
Controlling Facilities	artcc : edmm.artcc
Operator	common carrier : air carrier
Make Model Name	B777 Undifferentiated or Other Model
Operating Under FAR Part	Part 121
Flight Phase	descent : approach
Route In Use	arrival star : rockil.8
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : relief pilot
Experience	flight time last 90 days : 240 flight time total : 14000 flight time type : 4500
ASRS Report	718856
Person 2
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Events
Anomaly	non adherence : published procedure other spatial deviation
Independent Detector	other controllera
Resolutory Action	controller : issued new clearance
Supplementary
Problem Areas	Chart Or Publication
Primary Problem	Chart Or Publication

Narrative:

We were on the rokil 8 runway 8L RNAV transition. We installed the arrival in the FMC. There was a note we all missed at DM420 which states; 'no turn onto final unless cleared by ATC or during lost communication.' after passing DM420 the airplane made the turn onto base via the arrival in the FMC and ATC questioned us on the turn because they did not clear us for the turn. The note is very vague. It specifically says don't turn onto final; it doesn't say anything about the base turn. Also; it doesn't tell us what to do if we don't get the clearance onto the final by ATC. If this is a normal occurrence for the approach; perhaps the FMC should provide for a route discontinuity.

Original NASA ASRS Text

Title: B777 CREW RPTS CONFUSING NOTE ON ROKIL 8 RNAV ARR TO MUC.

Narrative: WE WERE ON THE ROKIL 8 RWY 8L RNAV TRANSITION. WE INSTALLED THE ARR IN THE FMC. THERE WAS A NOTE WE ALL MISSED AT DM420 WHICH STATES; 'NO TURN ONTO FINAL UNLESS CLRED BY ATC OR DURING LOST COM.' AFTER PASSING DM420 THE AIRPLANE MADE THE TURN ONTO BASE VIA THE ARR IN THE FMC AND ATC QUESTIONED US ON THE TURN BECAUSE THEY DID NOT CLR US FOR THE TURN. THE NOTE IS VERY VAGUE. IT SPECIFICALLY SAYS DON'T TURN ONTO FINAL; IT DOESN'T SAY ANYTHING ABOUT THE BASE TURN. ALSO; IT DOESN'T TELL US WHAT TO DO IF WE DON'T GET THE CLRNC ONTO THE FINAL BY ATC. IF THIS IS A NORMAL OCCURRENCE FOR THE APCH; PERHAPS THE FMC SHOULD PROVIDE FOR A RTE DISCONTINUITY.

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.