About this app
EICAS MESSAGES is a fast, offline reference tool for Boeing 767 flight crew, covering hundreds of EICAS (Engine Indication and Crew Alerting System) messages with clear explanations, level descriptions, MMEL references, and aural alerts. REFERENCE Browse the complete message library, filtered by severity level and searchable by name. Tap any message for a detailed breakdown — what the message means, its warning/caution/advisory level, the MMEL reference, and any associated aural alert. CHALLENGE Test and sharpen your EICAS knowledge with three challenge modes: • Quick Challenge — answer a set of 5, 10, or 20 questions at your own pace • Timed Challenge — score as many correct answers as possible within 60, 90, or 120 seconds • Review Missed — focus on messages you've previously got wrong Track your best streaks, personal bests, and high scores across all modes. Missed answers automatically build a review bank so you can drill your weak spots. Fully offline — no account, no subscription. Information is derived from current aircraft manuals and is intended for study purposes only. Always refer to approved documentation for operational use.
Latest release
What’s New
Challenge Mode Test your EICAS knowledge with three new challenge modes: Quick Challenge (5–20 questions), Timed Challenge (up to 120 seconds), and Review Missed — which draws from messages you've previously answered incorrectly. Scores, personal bests, streaks, and a top-10 high score board are tracked for each mode. Design improvements across the message list and detail views.
Audience growth
Ratings growth
Baseline captured. Growth appears after the crawler observes a changed rating count.
Momentum comes from crawler snapshots for the tracked storefront. “Viral growth signal” means unusually fast recent rating gains; it is an indicator, not download data.
Price tracking
Price intelligence
First snapshot captured. The trend line starts after the next crawler price observation.
- First observed Aug 19, 2026 · 8:53 PM $1.99
Screenshots
