WITHDRAWN - Rockwell-Collins GPS Receiver — Date Roll-Over Anomaly
- Published
AI-generated summary of the official EASA document. Verify against the PDF before acting.
What to do
Operators of affected aircraft should contact Rockwell-Collins to establish a modification program and follow manufacturer and aircraft-specific recommendations. They should develop mitigation plans for potential loss of FANS/CPDLC capabilities and for managing fault detection, maintenance scheduling, and condition monitoring affected by incorrect date data. No mandatory compliance deadline is specified, but timely action is strongly recommended.
Summary
EASA Safety Information Bulletin 2009-06R1 is an informational bulletin addressing a software anomaly in certain Rockwell-Collins Multi-Mode Receivers (MMR) installed on various Boeing, Airbus, and Bombardier aircraft models. The anomaly causes a date roll-over error at midnight on 20/21 June 2009, resulting in the receiver reporting an incorrect date approximately 19.7 years off. Affected aircraft include Boeing 737, 747, 757, 767, 777, Airbus A300-600, A310, A320, A330, A340, A380, and Bombardier CL-600 series.
What changed
This bulletin informs operators of a known software anomaly in specific Rockwell-Collins GPS receivers that causes a date roll-over error on 20/21 June 2009. It highlights the potential impact on various aircraft systems such as FANS/CPDLC, FMS, ACARS, and flight deck clocks, and references Rockwell-Collins service letters and bulletins for detailed applicability and corrective actions. The bulletin is informational only and does not mandate any regulatory action.
Why it matters
The date roll-over anomaly can disrupt critical aircraft functions including ATC datalink communications, navigation database validity, fault history logging, maintenance monitoring, and flight data recording. Operators, maintenance organizations, and compliance teams must be aware of these impacts to ensure continued safe and reliable aircraft operations and to avoid operational disruptions or data inaccuracies. Understanding this issue helps in planning mitigation and maintenance strategies.
More for Boeing 737
All 175- EASA SIB SAIB-2026-17Vertical Navigation Approach Disconnect Following Missed ApproachOct 9, 2026
- EASA AD US-2026-18-07Fuselage - Fuselage Skin, Bear Strap and Stub Frame at the Forward Galley Door Cutout - InspectionOct 7, 2026
- EASA PAD 26-113Engine – High Pressure Turbine Front Seal – InspectionSep 23, 2026
- EASA AD US-2026-15-11Fuselage - Fuselage Skin / Bear Strap - InspectionAug 7, 2026
- EASA AD US-2026-14-11Air Conditioning - AFM Operating Procedures - Amendment
Get the next one by email
New ADs and bulletins for these 12 aircraft types, summarized like this page, every Monday.