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Zan ARTCC controllers reported the current IFR low altitude enroute chart for their airspace had an MEA error.
| Attributes | |
| ACN | 1379465 |
| Time | |
| Date | 201608 |
| Local Time Of Day | 1801-2400 |
| Place | |
| Locale Reference | ZAN.ARTCC |
| State Reference | AK |
| Environment | |
| Light | Daylight |
| Aircraft 1 | |
| Make Model Name | Small Transport |
| Operating Under FAR Part | Part 91 |
| Flight Phase | Cruise |
| Route In Use | Airway T269 |
| Flight Plan | IFR |
| Person 1 | |
| Function | Enroute |
| Qualification | Air Traffic Control Fully Certified |
| Experience | Air Traffic Control Time Certified In Pos 1 (yrs) 5 |
| Person 2 | |
| Function | Enroute |
| Qualification | Air Traffic Control Fully Certified |
| Experience | Air Traffic Control Time Certified In Pos 1 (yrs) 21 |
| Events | |
| Anomaly | ATC Issue All Types Deviation - Procedural Published Material / Policy Inflight Event / Encounter CFTT / CFIT |
Narrative:
Aircraft X was flying T269 to anc. Just prior to joh VOR he got into icing and requested 7000 feet to get the ice off his wings. The mia (minimum IFR altitude) was 6100 feet followed by 4000 feet then jumps up to 10000 feet closer to anc. He said he could climb back up after joh. I pulled down the paper chart to look at the T269 altitudes between ted and anc to see what was needed. The chart said 3200G but the crossing restrictions were higher at ted 6300E and fimib 5400W so the 3200G didn't seem right.I gave the chart to a supervisor and asked him to check. He took it to another supervisor who said it looked right; but said he wouldn't go lower than 7000. I gave him a block 7000-9000 feet. He dropped off radar and I had him report 30 miles out of ted. I gave a briefing to the next controller and we talked about the airway they thought the MEA (minimum enroute altitude) was higher also. We pulled up electronic versions and got the old chart from upstairs in the outdated locker and found the MEA was 8800G. They pushed the supervisors to get a NOTAM out to fix the grotesque error on the paper chart that could have caused an accident. I'm not sure who makes the paper charts; but maybe they need to update their procedures.
Original NASA ASRS Text
Title: ZAN ARTCC Controllers reported the current IFR Low Altitude Enroute Chart for their airspace had an MEA error.
Narrative: Aircraft X was flying T269 to ANC. Just prior to JOH VOR he got into icing and requested 7000 feet to get the ice off his wings. The MIA (Minimum IFR Altitude) was 6100 feet followed by 4000 feet then jumps up to 10000 feet closer to ANC. He said he could climb back up after JOH. I pulled down the paper chart to look at the T269 altitudes between TED and ANC to see what was needed. The chart said 3200G but the crossing restrictions were higher at TED 6300E and FIMIB 5400W so the 3200G didn't seem right.I gave the chart to a supervisor and asked him to check. He took it to another supervisor who said it looked right; but said he wouldn't go lower than 7000. I gave him a block 7000-9000 feet. He dropped off radar and I had him report 30 miles out of TED. I gave a briefing to the next controller and we talked about the airway they thought the MEA (Minimum Enroute Altitude) was higher also. We pulled up electronic versions and got the old chart from upstairs in the outdated locker and found the MEA was 8800G. They pushed the supervisors to get a NOTAM out to fix the grotesque error on the paper chart that could have caused an accident. I'm not sure who makes the paper charts; but maybe they need to update their procedures.
Data retrieved from NASA's ASRS site 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.