Flight crew of C560 declare emergency and divert when both fuel filter bypass lights illuminate at c...

Attributes
ACN	686716
Time
Date	200602
Local Time Of Day	1201 To 1800
Place
Locale Reference	airport : zzz.airport
State Reference	US
Altitude	msl single value : 37000
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	artcc : zzz.artcc
Operator	general aviation : corporate
Make Model Name	Citation V
Operating Under FAR Part	Part 91
Flight Phase	cruise : level
Flight Plan	IFR
Person 1
Function	controller : flight data flight crew : captain oversight : pic
Qualification	pilot : instrument pilot : commercial pilot : cfi pilot : atp pilot : multi engine
Experience	flight time last 90 days : 120 flight time total : 3200 flight time type : 550
ASRS Report	686716
Person 2
Affiliation	company : corporate
Function	flight crew : first officer
Qualification	pilot : cfi pilot : atp
Experience	flight time last 90 days : 100 flight time total : 6500 flight time type : 700
ASRS Report	686717
Events
Anomaly	aircraft equipment problem : critical non adherence : published procedure
Independent Detector	aircraft equipment other aircraft equipment : fuel filter bypass lights other flight crewa other flight crewb
Resolutory Action	controller : provided flight assist flight crew : declared emergency flight crew : diverted to another airport flight crew : landed in emergency condition
Supplementary
Problem Areas	Aircraft
Primary Problem	Aircraft

Narrative:

In cruise at FL370; both the r-hand and l-hand fuel filter bypass lights illuminated. The r-hand came on first and the checklist was immediately used. It indicated to land as soon as practical. After discussing airport options with the first officer; the left fuel filter bypass came on. We decided to land at the first available airport and we declared an emergency. After performing required checklists and descending rapidly; the flight landed at ZZZ1 without further incident. The l-hand fuel boost pump came on during short final. I believe the cause was due to the fueler not injecting prist as required by the ce-560. When I put the fuel order in; I was also checking on catering and flight release information. The FBO fueler finished fueling the aircraft prior to me being able to monitor. Checking on other flight issues combined with security procedures at ZZZ2 kept me from properly monitoring the fueling process. Solution: make every effort to monitor fueling. If there are other items to attend to; either delay fueling or attend to those items later. Supplemental information from acn 686717: we declared an emergency and asked to divert. We did not request emergency equipment. We announced 5 mi final on CTAF; then a C172 announced turning left base runway 36. We asked the C172 to go around as we had an emergency and needed to get on the ground. The C172 went around.

Original NASA ASRS Text

Title: FLT CREW OF C560 DECLARE EMER AND DIVERT WHEN BOTH FUEL FILTER BYPASS LIGHTS ILLUMINATE AT CRUISE. SUSPECT FUEL ADDED AT DEP ARPT DID NOT CONTAIN REQUIRED ANTI-ICE ADDITIVE.

Narrative: IN CRUISE AT FL370; BOTH THE R-HAND AND L-HAND FUEL FILTER BYPASS LIGHTS ILLUMINATED. THE R-HAND CAME ON FIRST AND THE CHKLIST WAS IMMEDIATELY USED. IT INDICATED TO LAND AS SOON AS PRACTICAL. AFTER DISCUSSING ARPT OPTIONS WITH THE FO; THE L FUEL FILTER BYPASS CAME ON. WE DECIDED TO LAND AT THE FIRST AVAILABLE ARPT AND WE DECLARED AN EMER. AFTER PERFORMING REQUIRED CHKLISTS AND DSNDING RAPIDLY; THE FLT LANDED AT ZZZ1 WITHOUT FURTHER INCIDENT. THE L-HAND FUEL BOOST PUMP CAME ON DURING SHORT FINAL. I BELIEVE THE CAUSE WAS DUE TO THE FUELER NOT INJECTING PRIST AS REQUIRED BY THE CE-560. WHEN I PUT THE FUEL ORDER IN; I WAS ALSO CHKING ON CATERING AND FLT RELEASE INFO. THE FBO FUELER FINISHED FUELING THE ACFT PRIOR TO ME BEING ABLE TO MONITOR. CHKING ON OTHER FLT ISSUES COMBINED WITH SECURITY PROCS AT ZZZ2 KEPT ME FROM PROPERLY MONITORING THE FUELING PROCESS. SOLUTION: MAKE EVERY EFFORT TO MONITOR FUELING. IF THERE ARE OTHER ITEMS TO ATTEND TO; EITHER DELAY FUELING OR ATTEND TO THOSE ITEMS LATER. SUPPLEMENTAL INFO FROM ACN 686717: WE DECLARED AN EMER AND ASKED TO DIVERT. WE DID NOT REQUEST EMER EQUIP. WE ANNOUNCED 5 MI FINAL ON CTAF; THEN A C172 ANNOUNCED TURNING L BASE RWY 36. WE ASKED THE C172 TO GO AROUND AS WE HAD AN EMER AND NEEDED TO GET ON THE GND. THE C172 WENT AROUND.

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.

Flight crew of C560 declare emergency and divert when both fuel filter bypass lights illuminate at cruise. Suspect fuel added at departure airport did not contain required anti-ice additive.